Help control drivers in dangerous areas while protecting people and property. It can be removed for seal coating, snow removal or change of location. Resists marring by oil, road salt, sunlight, and chemicals. Constructed of lightweight recycled plastic. The concrete hardware kit includes bolts, anchors and washers. Asphalt kit includes spikes and butyl tape. The glue down anchor plate kit includes anchor plates, T-nuts, bolts, and washers. Requires 2-3 ounces of either 2-part epoxy or heavy-duty construction adhesive to the bottom of each anchor plate which is not included.