The speed bumps are designed to control traffic speeds and provide enough room for road cables while not causing damage to cars or road. It features high quality rubber construction with reflective yellow stripes, and a 22,000 lbs. load capacity. Each speed bump features 2 channels to fit power cords, hoses, & other cables underneath. It can be used as a temporary device for children's play areas, or installed into concrete, gravel, or asphalt roads permanently.