Abstract: A baseball practicing apparatus includes two opposite upright frames, two opposite longitudinal rods mounted between the upright frames and provided with a plurality of first emitters and a plurality of first receivers respectively, and two opposite transverse rods mounted between the upright frames and provided with a plurality of second emitters and a plurality of second receivers respectively. Thus, the pitching position of the baseball is detected exactly by provision of the emitters and receivers, so that the user can judge and calibrate the pitching position of the baseball, thereby facilitating the user practicing the pitching skill. In addition, the baseball practicing apparatus detects and displays the pitching position and the velocity of the baseball simultaneously, thereby enhancing the amusement effect.

Abstract: A basketball frame structure includes a backboard, two fixing plates, a base, two first upright rods, two second upright rods, two first links, an adjusting bar, two second links, and a plurality of hollow weights. Thus, the height of the backboard is changed by movement of the adjusting bar, thereby facilitating a user adjusting the height of the backboard. In addition, when the adjusting bar is moved, the positioning bolt is slidable in the slideway of the adjusting bar and detachably locked in either one of the retaining slots of the adjusting bar, so that the height of the backboard is changed in a multi-stage manner so as to fit requirements of different users.

Abstract: A playing table includes a transparent base plate, four foot stands mounted on the corners of the base plate and each having an upper end having a side formed with a through hole, and four light emitting members each mounted in a respective one of the foot stands and each aligning with the through hole. Thus, each of the light emitting members emits a light source passed through the through hole of a respective one of the foot stands and projected onto the base plate, so that the playing table has a light emitting effect, thereby enhancing the aesthetic quality of the playing table.

Abstract: A playing table includes a transparent base plate, four foot stands mounted on the corners of the base plate and each having an upper end having a side formed with a through hole, and four light emitting members each mounted in a respective one of the foot stands and each aligning with the through hole. Thus, each of the light emitting members emits a light source passed through the through hole of a respective one of the foot stands and projected onto the base plate, so that the playing table has a light emitting effect, thereby enhancing the aesthetic quality of the playing table.

Abstract: A basketball frame structure includes a backboard, two fixing plates, a base, two first upright rods, two second upright rods, two first links, an adjusting bar, two second links, and a plurality of hollow weights. Thus, the height of the backboard is changed by movement of the adjusting bar, thereby facilitating a user adjusting the height of the backboard. In addition, when the adjusting bar is moved, the positioning bolt is slidable in the slideway of the adjusting bar and detachably locked in either one of the retaining slots of the adjusting bar, so that the height of the backboard is changed in a multi-stage manner so as to fit requirements of different users.

Abstract: A golf practicing device includes a housing, an electromagnet mounted in the housing, a cover rotatably mounted on the housing, a magnetic block secured on the cover and aligning with the electromagnet, and a bar mounted on the cover for rotating the cover when the bar is hit. Thus, the energized electromagnet produces a magnetic force to magnetically attract and move the magnetic block to return the bar to the original position, so that the bar can be restored to the original position automatically, thereby facilitating the user practicing the golf skill.

Abstract: A golf practicing device includes a rotation disk, a cover, a bar, and an adjusting knob. The golf practicing device has a height adjustable function. Thus, the height of the practicing ball of the bar can be adjusted arbitrarily so as to fit users of different heights and statures, thereby facilitating the users operating the golf practicing device.