The Master Lock® No. S3477 1/4 turn ball valve lockout features a compact size that can easily be stored or carried and a heat-resistant powder coated metal body. Device fits manual, quarter turn ball vale handles to protect against accidental opening and fits valves between 1-1/4in (32mm) to 3in (75mm) Dia. The easy-to-use one-piece design locks valve in off position. Master Lock® Ball Valve Lockout, Wedge Style, 1/4 in Fits Minimum Handle Size, 3 in Fits Maximum Handle Size, 1 Padlocks Maximum, 9/32 in Padlock Shackle Maximum Diameter, Powder Coated Metal, Red