Peel-a-Tray  products are backed by an eco-friendly, patent-pending liner  technology. The durable, standalone trays feature a reusable,  hard-substrate base with multiple built-in liners.  Each liner can be  easily peeled away immediately after use, leaving behind a clean tray  for another job in just seconds. No other tray on the market features  built-in liners, eliminating the need to purchase separate inserts.