RDX Arm Curl Blaster Biceps Isolator Bomber - Double Riveted with Adjustable Strap Muscle Builder - Great for Bodybuilding, Strength Training and Triceps Extensions Uniquely contoured rigid metal design allows you to isolate your arms and shoulders Webbed nylon belt, a thick, oversized neoprene neck pad, and dense elbow pads The strap features a quick release to adjust it to the perfect position Bulk up your biceps each time you grab a workout bar with the RDX Bicep Bomber Product dimensions: 22.6" L x 3.5" W x 6" H, Product weight: 1 Kg. One size fits all