Spring mounted with retractable casters, a protective bumper and stackable designSupports up to 300 lbs15"H x 15"W x 15"DEachSpring mounted with retractable casters, a protective bumper and stackable designSupports up to 300 lbs15"H x 15"W x 15"DCramer Scooter Stool Round, Step & Lock Wheels, Grayhttp://s7d5.scene7.com/is/image/Staples/s0324765_sc7?$std$http://s7d5.scene7.com/is/image/Staples/s0324765_sc7?$thb$http://www.staples.com/sbd/img/res/ic/ic016-deliveryreq.gifhttp://s7d5.scene7.com/is/image/Staples/s0324765/Cramer-Scooter-Stool-Round-Step-Lock-Wheels-Gray/product_818883Cramer Scooter Stool Round, Step & Lock Wheels, Gray0.00