The diameter of hand grip is 3cm, it fits all hand. You can use it between two concrete walls.How to use it?
Step 1 : fix the rubber-limiter with screw on the door frame.
Step 2 : turning the bar clockwise until the end of bar is pressing tight against the frame of your door. Specification:
Material: stainless steel
Length: 24Inch to 39Inch
Weight: 1.2kg Note:
1.please check and make sure that bar is fixed tightiy before you make the exercise.
2.Please remove from doorway when not in use.
Multiple grip positions for building multiple muscle groups
Ideal for pull-ups, push-ups, chin-ups, dips, crunches, and more
Non slip foam grips for extra comfort
Chin -Up Bar mounts easily to any doorframe to become your own personal gym.
Easy to carry