Pneumatic Fitting Lockout Fitting Lockout Type Pneumatic Fitting For Maximum Padlock Shackle Diameter 1/4 in For Number of Fittings 3 Maximum Number of Padlocks 1 For Fitting Gender Male For Fitting Sizes 1/4 in 3/8 in 1/2 in For Maximum Fitting Size 1/2 in For Minimum Fitting Size 3/8 in For Use With 1/4 3/8 and 1/2 in Male Fittings Includes Loop on the Side used to Hang the Hose and Lockout Device Lockout Color Red Lockout Material Fiberglass Reinforced Nylon