The Boulder Fit Door Trainer is the ultimate training tool to strengthen and develop your shoulders, back, chest and arms. Unique rock climbing hand holds provide an advanced grip to challenge you during your workout. Rock climbing hand holds will help you build grip and forearm strength for all your outdoor adventures. Perform various exercises such as sit-ups, push-ups, dips and multiple grip positions of pull-ups on the Boulder Fit Door Trainer. Simple assembly, portable, and attaches to and removes easily from the doorframe without any hardware. Multiple grip positions to build and tone upper body muscles Fits standard doorways Sturdy steel construction Thick foam padding for comfortable grips Unique rock climbing hand holds build grip and forearm strength Simple assembly, portable, and attaches and removes easily from the doorframe Fits standard doorways Warranty 90 days parts/1 year frameOverall Dimensions 36.5 L x 17.25 W x 11 H