Gas Cylinder Lockout, For Maximum Padlock Shackle Diameter 1/4 in, For Neck Ring Diameter 3 1/2 in, For Pressure Type High, Low, For Thread Type 11 UNF, Lockout Material Polypropylene, Maximum Number of Padlocks 1, Includes Lockout Device, Lockout Color Red, Overall Height 6.25 in, Overall Width 3.48 in, Standards OSHA 1910.147