Used Harbinger AB Carver Pro W Knee Pads Ab Roller Exercise Wheel Black OSFA:Black making the ball softer to 9:Black Blue Silver making the ball softer to the touch and easier to grip around the rim Grip & durability: the premium Evo microfiber composite cover provides a grip that players love and durability to last all season and beyond Ultimate control: laid in composite channels create a consistent feel and texture over the entire surface of the basketball to provide unparalleled control NFHS approved: approved for play by the national federation of state high school associations (NFHS) The Mag Riser boasts an incredible five to one safety factor Ultra wide ab roller with built in resistance and ergonomic handles to help maximize results of ab roll out exercises Interior kinetic engine uses a carbon steel spring to provide resistance and amplify abdominal and arm workout Ultra wide wheel tread offers stability when carving left right or center for targeted work on obliques Ergonomic hand grips are angled to activate arm and core muscles handles are removable for easy storage and transport Includes high density foam kneepad for superior comfort