Supports Push-ups, iron cross, dips, pull-ups and many more * Straps are easily adjustable to suit your needs. * The rings are covered by glue which makes them smell. Rub the rings with wet cloth will weaken the smell. Please make sure you don"t mind the smell before biding. * Nylon Webbing Straps (W x L): 4cm X 240cm * External Diameter of the Ring: 21cm