ITEM NAME:Scuba Diving Dive Tank Yoke Valve Threaded Dust Plug Cap, Protection Cover Description: High quality PVC plastic, sturdy, anti-corrosion and durable. Retainer cord included. Easy to install and replace. They prevent dirt and/or other materials from entering your tank valves between dives. Resist salt, sediment buildup, corrosion and damage from normal use. It Fit York/ A-clamp tank valves cylinders Specification: Material:ABS Plastic Diameter: approx. 26mm/1.02 inch Size: approx. 40x32x40 mm/1.6x1.3x1.6 inch Color: Black Package Includes: 1 Piece Dive Tank Valve Cap Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks! SKU: DMO0010163554035378.1 Piece Dive Tank Valve Cap. Retainer cord included. Easy to install and replace. They prevent dirt and/or other materials from entering your tank valves between dives. It Fit York/ A-clamp tank valves cylinders.