All-Terrain Heavy Duty Wheel Chocks - 38" Max Tire Diameter - 40 Tons Capacity - Flat Bottom Features_Water Resistant / Waterproof Ultraviolet Protection Factor (UPF) of

Ultraviolet Protection Factor (UPF) of 50

65% Polyester / 35% Cotton Lightweight material

Teflon® treated non-connected silver reflective material

Designed for warmth and comfort

It features a midweight yet durable construction that ensures flame resistance

All-Terrain Heavy Duty Wheel Chocks - 38" Max Tire Diameter - 40 Tons Capacity - Flat Bottom Features_Water Resistant / Waterproof Ultraviolet Protection Factor (UPF) ofMade in USA Sold as Single For 28 38 Inch Tires Lightweight with tough urethane construction Rated for vehicles with a gross operating weight up to 80,000 lbs. 3rd party tested for compliance ANSI compliant color written guidelines on proper chocking procedures Complies with SAE J348, NFPA 1901, and NFPA 1906 Standards Resistant to oils, fuels and solvents Recessed carrying handle on the backside of the chock Safety color visibility Replaceable