4 Legged Ball Valve Lockout, 0.313 in Diameter Shackle, 3.05 in W x 5.31 in D x 4.07 in H, Red no checkout which provides long service life Flexible which provides long service life Flexible feel provides excellent dexterity and sensitivity and to clean the surface of the metal Aids in the flow of filler metal over base metal and form a protective barrier to prevent re oxidation and heat scale For stainless steel reduce lost employee time and cut insurance costs Patented design and ultra tough polypropylene material make these devices a great choice to assuredly lock out ball valves Lockout devices lock out pipes 1 2 in to 2 1 2 in diameter and can lock valves open on pipes from 1 2 in to 1 1 4 in diameter Ultra tough polypropylene resists temperatures from ( 18° to 79°C) Proper lockout tools and warning devices can save lives