Abstract: Embodiments of the present disclosure provide a marker ink and a method for preparing thereof. The marker ink comprises a water-based acrylic resin, a pigment paste, a cross-linking agent, and water. A mean diameter of a pigment in the pigment paste is less than 150 nm.

Abstract: Disclosure is a massage ball and a massage device. The massage ball includes a ball, a mounting hole is arranged to penetrate through the ball; and a rope, a limiting plate is fixedly sleeved on the rope and the limiting plate is detachably clamped in one end of the mounting hole; one end of the rope is arranged with a clamping assembly, and the clamping assembly is detachably connected with the rope, and the clamping assembly is detachably arranged in another end of the mounting hole. The present disclosure realizes a detachable connection between the ball and the rope by arranging the mounting hole in the ball and arranging the limiting plate and the clamping assembly on the rope, so that users can switch different use modes according to different massage actions when using the ball, thus realizing the function of adaptive massage for different body parts.

Abstract: The present disclosure provides a mark ink and a method for preparing the marker ink. The mark ink includes an azo-metal complex dye, a film-forming resin, and ethanol. The azo-metal complex dye is represented by a formula: where, R1, R2, and R5 are polar groups, M is a metal ion, mXn? is an anion, and n and m are positive integers.

Abstract: Embodiments of the present disclosure provide a marker ink and a method for preparing thereof. The marker ink comprises a water-based acrylic resin, a pigment paste, a cross-linking agent, and water. A mean diameter of a pigment in the pigment paste is less than 150 nm.

Abstract: The present disclosure provides a mark ink and a method for preparing the marker ink. The mark ink includes an azo-metal complex dye, a film-forming resin, and ethanol. The azo-metal complex dye is represented by a formula: where, R1, R2, and R5 are polar groups, M is a metal ion, mXn? is an anion, and n and m are positive integers.

Abstract: Disclosed is a weighted vest including a first vet body and a second vet body. The first vet body includes two symmetrically arranged first shoulder straps, wherein a first adhesive element is provided along a length direction of a first side of each of the first shoulder straps, and a connecting strap is separated from the first adhesive element and provided at a position of each of the first shoulder straps where the first adhesive element is located. The second vet body includes two symmetrically arranged second shoulder straps, wherein a second adhesive element is provided along a length direction of one side of each of the second shoulder straps, and a connecting buckle is provided on another side of each of the second shoulder straps at a position corresponding to the second adhesive element. First and second weight pockets are provided on the first and second vet bodies, respectively.

Abstract: Disclosed is a hydraulic damping device level riding platform with adjustable resistance, which comprises a frame body, a shaft mechanism, a flywheel and a hydraulic damping mechanism, the shaft mechanism is arranged on the frame body, one end of the shaft mechanism is connected with the hydraulic damping mechanism and another end of the shaft mechanism is connected with the flywheel. The hydraulic damping mechanism comprises: a cavity; a rotating disc provided with blades, the rotating disc is arranged in the cavity; and a liquid level height adjusting mechanism movably connected inside the cavity to control a liquid level height in the cavity. The liquid level height of the liquid in the cavity is controlled through the liquid level height adjustment mechanism, so as to realize the control of the resistance of the rotating disc to the liquid.

Abstract: The embodiments of the present disclosure provide an underwater fitness belt, including one or more fixing floats, a plurality of sets of adjustable floats, and a fixing strap; each set of the plurality of sets of adjustable floats includes two symmetrically shaped adjustable floats; and the plurality of sets of adjustable floats are capable of being connected through the fixing strap and are capable of being unconnected.

Abstract: Disclosed is a folding seat which comprises a chair pocket, a first supporting assembly, and a second supporting assembly, the chair pocket is sheathed on the first supporting assembly and the second supporting assembly. The first supporting assembly comprises a supporting rod and a supporting base, the supporting rod is hinged in the supporting base and rotates in a preset range. The second supporting assembly and the first supporting assembly have the same structure and arranged opposite to each other detachably. By arranging the first supporting assembly and the second supporting assembly detachably to support the chair pocket, the folding seat can be fixed. By dissembling the first supporting assembly and the second supporting assembly, then rotating and adjusting the supporting rods in the first supporting assembly and the second supporting assembly, the folding seat can be folded and stored.

Abstract: The embodiments of the present disclosure provide a buoyant device including a body composed of a material with a specific gravity less than 0.3. The body is composed of a portion between a first distance and a second distance from an axis. The body includes a first portion, a second portion, and a third portion. Differences of the first portion and distance differences of the second portion are less than a distance difference of the third portion. The first portion includes a first difference group and a second difference group composed of a plurality of distance differences, and distance differences of the first difference group are greater than distance differences of the second difference group. The second portion is located away from the axis relative to the first portion.

Abstract: The embodiments of the present disclosure provide a connectable marker pen, including a body and a pen cap; wherein the pen cap is provided on at least one end of the body; an exterior of the pen cap is provided with one or more protrusions, and the one or more protrusions include at least one first protrusion and at least one second protrusion; and both the first protrusion and the second protrusion are provided on at least one surface of the exterior of the pen cap.

Abstract: Some embodiments of the present disclosure provide fitness devices and methods for switching a training mode. The fitness device may include a resistance module and at least one type of fitness equipment. The resistance module may be detachably connected with the at least one type of fitness equipment. The resistance module may provide resistance to the at least one type of fitness equipment. The at least one type of fitness equipment may include a switching device to switching the training mode.

Abstract: Disclosed is a hydraulic damping device with adjustable resistance and a riding platform. The hydraulic damping device with adjustable resistance comprises a support frame, a rotating mechanism movably connected to the support frame, a hydraulic damping mechanism arranged at one end of the rotating mechanism and an inertia wheel detachably connected to an other end of the rotating mechanism, and the hydraulic damping mechanism comprises a shell and a rotating disc connected with the rotating mechanism extending into the shell, at least one blade is arranged on the rotating disc, and the blade is connected with the rotating disc in an adjustable angle to provide resistance at a corresponding angle. The angle of the blade relative to the rotating disc is adjusted so that when the blade rotates with the rotating disc, different from the resistance generated by the damping liquid in the shell, different resistance effects are provided.

Abstract: Disclosed is a folding seat which comprises a chair pocket, a first supporting assembly, and a second supporting assembly, the chair pocket is sheathed on the first supporting assembly and the second supporting assembly. The first supporting assembly comprises a supporting rod and a supporting base, the supporting rod is hinged in the supporting base and rotates in a preset range. The second supporting assembly and the first supporting assembly have the same structure and arranged opposite to each other detachably. By arranging the first supporting assembly and the second supporting assembly detachably to support the chair pocket, the folding seat can be fixed. By dissembling the first supporting assembly and the second supporting assembly, then rotating and adjusting the supporting rods in the first supporting assembly and the second supporting assembly, the folding seat can be folded and stored.