The Heavy Duty Easy Gym Doorway Chin-up/Pull-up Bar from ProSource provides an inexpensive way to tone and build muscles at home, without large equipment or marring your doorframe with installation screws. Designed to slip into any standard doorways the Multi-Grip Pull-Up Bar can be installed anywhere you have a sturdy doorframe. But, if you have a permanent location in mind, it can also be mounted to the doorframe with the optional, included J brackets. Thanks to the multi-grip design, you will be able to develop your back, chest, shoulders, arms, and abdominal compound muscles with one simple piece of equipment. In addition to traditional pull-ups and chin-ups, the bar allows you to perform closed-wide angle and hammer grips as well as multiple leg raises and oblique curls. Built to last, the Multi-Grip Pull-Up Bar is constructed of high-grade steel with ProSource Comfort Grip Foam for a secure and pain-free grip. The bar's maximum weight capacity is 300 pounds within a sturdy doorframe.