The Perfect Fitness Multi-Gym is a portable gym system that can be used as a doorway pull-up bar or for sit-ups, push-ups, and dips. All Perfect Fitness Multi-Gyms target arms, chest, core, and back muscles with workouts that ensure maximum muscle engagement. They feature padded handles that provide 3 grip positions to perform normal grip, close grip, and hammer grip pull-ups, and a 300-pound capacity making it safe to use with a weight vest. Multi Gym Pro feature an additional wide grip position. When turned over, all Multi-Gyms have padded handles for comfort and to help ensure correct form doing sit-ups, push-ups, and dips. The Multi-Gym Pro features patented door frame guards that use a unique flat design with thick foam pads to help protect doorframes. All Multi-Gyms are easy to install and does not require any drilling.