Greatly increase the life of your containment berm. Rolling a vehicle that has picked up rough, sharp objects in its tires onto a containment berm is the single best way to puncture or rip the berm. Berms mats are ultra tough and durable belts that are placed on top of the berm to protect it from such situations. Drive the truck, tanker, or machine onto the belt instead of coming in direct contact with the berm and save yourself from having to replace an expensive containment berm. For use with berms that are up to 16 ft. long.