100% recycled tires Reduces speed to approximately 2 mph to 5 mph Molded highway reflective tape makes curb highly visible at night and cat's eye reflectors provide additional reflectivity at night Modular design to cover the width of any roadway and flexes slightly to confirm to the contour of uneven surfaces and gravel Resistant to damage from ultraviolet light and precipitation including ice, road salt, gas and oil, and does not change with extreme weather swings 40,000 lb maximum weight capacity.