The Phoenix Fitness sit up bar fits under most doors using an adjustable clamp that will slot under doors up to 5.5cm thick. Sit ups make for a great abdominal workout, and this adjustable bar gives you an easy way to work on your abs and stomach muscles. This amazing tool slides under your door and the bar for your ankles is adjustable to three height levels for a varied workout. Designed with a padded foot rest for comfort, your abs will be looking great in no time. Adjustable sit up barClamp fits under doors measuring up to 5.5cm thickPadded footrest for comfortSize: 14.5cm (H) x 22.5cm (W) x 7.5cm (D)Colour: Black