These bright orange wheel chocks provide great durability and visibility. Perfect for preventing accidental movement of trucks and other vehicles with these tough, longlasting chocks. Their bright color provides added safety for ingoing and outgoing drivers to see them more easily. The safety tread on the face of the chock provides better grip and reduces slippage. Made of molded urethane for greater durability and resistance to shock, and abrasion. They are also more resistant to damage from oils and solvents and weight less than traditional metal chocks