Description: Heavy duty webbing scuba diving cylinder tank carrier, strong, lightweight and durable For safe upright storage & protection of 12L single steel SCUBA diving cylinders tanks with a rounded base. With comfortable molded handle and removable adjustable shoulder strap, easy to carry and transport To protect the base of your cylinders and assist in extending the life of expensive air tanks. Scuba Tank Boots also have vents with ribs and drain holes to allow water to drain away freely to help prevent corrosion Specification: Scuba Tank Boot Materials: Rubber Inner Diameter: approx. 170mm/ 6.7 inch; Outer Diameter: approx. 185mm/ 7.3inch; Height: approx. 145mm/ 5.7 inch Dive Tank Carrier Material: PP webbing, plastic Color: Black Webbing Width: Approx. 5 cm/2 inch Holder Strap: Approx. 170-190 mm/6.7-7.5 inch (adjustable) Package Includes: 1 Piece Dive Tank Carrier 1 Piece Scuba Tank Boots Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!