Clean BBQ - Disposable Aluminum Grill Liner. Set of 12 Sheets of Grill Topper 12-pack of Grill Liner sheets for covering messy barbecue grills Keep your grill grate clean. No black residue from previous use. Will not tear - 3 mils thick Fits quite snuggly over most grilling elements as long as they have straight grill bars. Clean up is easy! Just roll it into a ball and throw it in the garbage.