Cylinder Lockout Full Status 3 Hole For Maximum Padlock Shackle Diameter 1/4 in For Maximum Valve Stem Diameter 1 1/4 in For Neck Ring Diameter 1 1/3 in For Pressure Type High Low For Thread Type 11 UNF For Valve Wheel Diameter 3 in Lockout Material Polystyrene Maximum Number of Padlocks 3 Includes (3) Holes Language English Lockout Color Green/White/Yellow Overall Depth 60 in Overall Height 40 in Overall Width 40 in Standards OSHA 1910.147