18-8 Stainless Steel detachable Serving Shelf with U.V. Stabilized High-Density, FDA approved Polyethylene cutting board. Attaches and detaches instantly for quick and easy clean-up or storage. Stores inside of grill when not in use.CAUTION: Cutting Board Surface is Polyethylene Plastic and is subject to melting if grill is allowed to become overheated. This will occur if grill is left turned on with lid closed for long periods of time. Never leave grill unattended. MELTED PLASTIC CUTTING BOARDS ARE NOT COVERED UNDER WARRANTY.