Our multi-layered tacky mats capture contaminants from foot traffic and can be removed once soiled to reveal a fresh layer. Each sticky layer has a water-based adhesive to capture dust, dirt and grime from footwear. The bottom of each mat features a sticky adhesive to surely adhere to the surface. Each mat comes with number sheets for an easy understanding of how many sheets are left on the pad. Enviromat® sticky mats are available in a variety of sizes and colors.