This silicone baking sheet makes french macarons with marks and edges. The structure of the mat (silicone and fiberglass) allows for optimum distribution of heat and uniform cooking in a shorter time. Folds to store; dishwasher safe. Platinum silicone molds are treated with special nonstick so only need to oil them before first use to activate the nonstick properties. Recipe booklet included. Made by Lekue.