Adjustable Door Chin Up Bar [black-red] Performance Guarantee and Sturdy & Stable: Made of heavy duty stainless steel, the doorway pull up bar will be sturdy, durable and strong enough to withstand 210KG. - Fully Telescopic Adjustable Doorway Exercise Bar: With the adjustable design, our chin up bar frame between 23.6” to 39” and work out perfectly in most type of door frame. - Enhanced Multifunctional Comfortable Grip: The outer layer absorbs the sweat; the inner lining is tear resistant with anti skid inner layer, with extra comfort to minimize hand fatigue. - Less Than 5 Minutes - Easy Installation & Convenience: Drill free and easy to assemble and disassemble, very convenient to install and adjust the length. Notice: rotate until it cannot rotate anymore to make sure it is secured enough on both walls - Complete Upper Body Workout Bar: The adjustable doorway exercise bar can be fixed at different heights of doorways to do various exercises, not only pull-ups or chin-ups,