WEARWELL ErgoDeck™ 18x18" Modular Deck Mats with Heavy-Use Tiles lock teogher to seamlessly cover large areas or create custom configurations. Place in dry areas. PVC construction. Slightly textured surface with flex-points on the underside. Patented LockSafe® interlocking system securely connects tiles. Easy to maintain. Solid tiles withstand heavy use including cart traffic. Ideal in areas where small parts may fall to the floor. Made in USA.