Transform your doorway into the Perfect Multi-Gym and get a total upper body workout. Use your own body weight to build and strengthen your muscles. With the Perfect Multi-Gym you can do pull ups, chin ups, sit ups, and dips. It makes it easy to get the strong and lean body you’ve always wanted. No installation needed, unique design protects door frame, workout included. Includes Perfect Multi-Gym unit, 27 workout combinations, 3 Navy SEAL inspired circuits, nutrition guidelines. Product Details: Multi-functional –do pull ups, chin ups, sit ups and dips. Fits the widest range of door frames from 27” to 35” (68.8 cm to 88.9 cm). Extra-wide handles allow for true wide-grip pull ups (wider than standard pull up bars allow). Comprehensive workout guide with 3 Navy SEAL designed circuitUnique design protects door frame. No installation necessary.