Bench Bracket Number of Cylinders Held 1 Compatible Cylinder Diameter (Maximum) 14 in Compatible Cylinder Diameter (Minimum) 4 in Cylinder Securing Mechanism Chain with Safety Clip Safety Message Strap with Cinch Buckle Bracket Material Cast Aluminum Overall Width 6 1/2 in Overall Height 5 1/4 in Overall Depth 3 1/4 in Mounting Location Bench