Roadblocks 1400 series urethane wheel chocks feature the chock design used by most utilities and telephone companies. They are strong, safe and lightweight. Impact absorbing chocks grip tire and road, will not cause tire or pavement damage and are oil and chemical resistant. For added safety and convenience, these urethane wheel chocks feature a high visibility orange color and "How to Use" guidelines molded into each chock. Weight: 4.5 lbs. Measures 10" length by 8.5" width by 5" height. Available in orange color.