(as of Nov 21,2020 12:53:06 UTC – Details)
Vacuum Sucker: Strong suction can be up to 10.5 kg when it is attached the smooth surface, avoid dropping. No drilling, easy to assemble and carry.
Ball Lock: Can fix the position of ball and adjust the height of ball.
Detachable Elastic Rope: Control the reaction speed through the tightness of the rubber rope.
Two Method of Use: 1. Attached by vacuum sucker. 2.Can wrap the bottom around a heavy dumbbell and attached a screw with a ring in the ceiling.