LYXZ Upgrade Sit Up Bar Sit Up Assistant Device, Adjustable Core Workout Foot Sit up Helper with Oval Self Suction & Supporter for Home Gym (White)

Specification: Material : natural rubber+iron+foam Weight: 825g Color: white Bearing Capacity: 200LB Base Suction Size:11.5*14.5 Size: 27x14.5x18-22cm Package Size: 30.5*13.5*15.5cm Package Included: 1x Sit Up Bar 1x User Manual How to use: Find a clean flat ground first, then put the sit up bar on the ground and pull down the lock, adjust the gear position to fit your feet finally. Notice: Couldn't Use on Wooden Floors!!! Apply to smooth floors such as tiles floor & concrete-cured & any other smooth floors. Make sure the floor and the sucking pad are clean before using, then place the suction cup on a smooth surface, make sure there are no gaps at the bottom. (Add a little water can easy to sucking it on the floor).