✔【UNIQUE ANTI-SKID DESIGN, NO SCREWS INSTALLTION】You only take minutes to set it up and remove it on the door frame. It won't leave any traces on your door. Soft anti-skid mats on both side can firmly stick on the wall and prevent the door frame pull-up bars from falling down. When pull the bar, it will spread the gravity to both sides. The more heavier, the more sturdy✔【LOCKING MECHANISM, HIGHER SECURITY】The pullup bar no screws features a lock mechanism that prevents the bar from loosening and spinning. Once the lock is installed, there will never be a slippage. Larger and thicker silicone pad than market, so have higher slip resistance ensures stability. When mounted properly, this exercise bar for wall can hold up to 400lbs✔【ADJUSTABLE BAR LENGTH】Customize length for an easy fit in most door frame between 30.7"- 40.6"(78cm-103cm). Not only suitable for standard doorway, but also for opposing walls, perfect for home, garage or office use. With this adjustable pull up bar, home and office become your gym and you can do exercises in a quick way✔【THICKENED STEEL PIPE, COMFORT GRIPS】Thickened chrome-plated stainless steel pipe, the thickness of the steel pipe is 3 mm. Durable not easy to deform and break. Comfortable grip pad, sweat-absorbent, non-slip, detachable and washable. The unfixed designed hand grips allow you to move it to a suitable position for you✔【PRIVATE HOME GYM】SKL doorway chin-up bars are perfect for pull-ups, chin-ups, sit-ups, dips, crunches, triceps dips, leg raises and other exercise. Easy to carry it and hassle-free to install. No need go to gym to waste your time, just start your workout at home or office any time!