Dual Cylinder Stand Number of Cylinders Held 2 Compatible Cylinder Diameter (Maximum) 9 1/2 in Compatible Cylinder Diameter (Minimum) 9 1/2 in Cylinder Securing Mechanism Chain Material Steel Base Plate Depth 21 in Base Plate Width 12 in Overall Height 29 in Overall Width 21 in Overall Depth 9 1/2 in Standards OSHA Mounting Location Wall Color Green Features Stand Can Function as Island or Bolted onto a Wall For Use With Medium Sized Oxygen and Acetylene Cylinders Includes Chain