The Super Dolly Trailer and Bus Pad provides a safe and easy way to prevent stabilizer legs from sinking into the ground or tarmac. Made from injected molded high density polypropylene plastic, it weights just 6 pounds but can hold up to 100,000 pounds. Easy t clean and store. Works great in extreme temperatures, uneven ground, and will not soak up water. Dimensions: 15 in. x 17 in. x 1 in. thick. Comes in a bright, visible yellow color.