Abstract: A clamp of an anti-vibration spring includes a pipe body and a sheathing element fixed to an end the pipe body. Another end of the pipe body is fixed to a covering element. The sheathing element is passed through the external periphery of the pipe body. The pipe body includes a screw rod screwed at the moving element, and an end of the screw rod is protruded from an end of the covering element and fixed at a driving element. A connecting element between the sheathing element and the moving element positions the sheathing element and the moving element. Each sheathing element has a connecting portion including a transversal slot, two clamping disc, and an insert portion on the clamping disc connected to the transversal slot and fixed by a positioning element. By turning the driving element, the anti-vibration spring is compressed or released between the two clamping discs.

Abstract: A boot slider includes a body including a compartment. A piston is disposed in the compartment and is moveable between a first position and a second position. A cap is mounted in the compartment in order to restrain movement of the piston. A plurality of arms is connected together by a ring, and the ring is adapted to be retained on the cap. The arms are closed when the piston is in the first position, and the arms are urged open when the piston is in the second position.