If you're a tall diver, then you may not have the problem that many divers have when carrying a cylinder by the valve. Their too short! If it is difficult for divers less than 6'3" (190.5cm) to extend their arm when carrying the cylinder by the valve, then this product is what you need.1?2XS Scuba's Deluxe Tank Carrier fits 6.9" to 8.0" (17.5cm to 20.3cm) diameter cylinders. This deluxe carrier is equipped with hook and loop tank band straps with 2" (5.1cm) D-rings and a rubber molded, side carry handle. If you need the use of your hands when transporting your cylinder, the deluxe carrier also comes with a removable and adjustable padded shoulder strap.