CanDo® Exercise Band - Accessory - Economy Door Jamb Nub Anchor Strap - Each:
Door anchor with nub is used to anchor exercise band or tubing in a door jamb. Place anchor nub in door jamb at any height. Close door to create workout station! Heavy-duty webbing makes this accessory extra durable. Secure any size band or tubing to open loop of door nub strap.