Kingsford 35-Pack Aluminum Foil Non-Stick Grill Sheet(S). These 18"W x 1.97"L heavy-duty grill sheets are made of durable aluminum foil and feature a food-safe coating on the dull side to prevent sticking. Ideal for easy prep, cooking, and clean-up on and around the grill, they provide the strength and size you need to focus on creating delicious meals.