Big Mike's Fitness Ab Straps Attach to any pull-up bar or multi-gym: the Big Mike's Fitness ab straps are fully adjustable for any pull up / chin up bar or multi gym Easy to install : the Big Mike's Fitness ab straps are simple to install and detach from any bar Extra padded cushions for extra comfort : comfortable, sweat-resistant cushion Made from heavy duty material : strong material to hold on any pull up bar Specifically designed to reduce stress : these ab slings are extra long and wide which will reduce the stress to the back of your arms