"\"Helps to properly lockout valve handles from 1\"\" up to 14\"\" diameter. Designed with (2) flattened half-moons that completely cover the valve wheel. Made from polypropylene plastic, fully dielectric, resistant to extreme temperature changes (-50?F to 360?F) and resistant to cracking and abrasion. Available in (4) colors: red, yellow, blue and green. Color choices are in compliance with those recommended in ANSI Z353.1.\""