The Gymstick Door Gym pull-up bar is a durable pull-up bar that can be installed in a doorway, featuring soft grips for a secure hold. Pull-ups effectively develop the muscles of the back and the entire upper body. In addition to pull-ups, the bar can easily be used for hangs and stretching the back and shoulders. The included metal brackets that attach to the door frame ensure the bar stays in place. Thanks to the quick-release mechanism on the brackets, you can easily remove the pull-up bar from the door when it's not in use. Note: Do not use in doorways wider than 91 cm.