SMART TileTop is the entry-level offering within this popular family of marbleized mats. The marble top surface is a chemical-resistant and durable PVC that is lightly textured for easy cleaning. Another advantage is SMART's 100% recycled sponge! SMART sponge is amazingly resilient, earth-friendly, and economical. It provides users with a winning combination of durability, value, and relief underfoot that sets a new standard for budget marbleized matting and easing environmental impact.