Review on 🥖 Velesco Silicone Baking Mat Set - 3 Half Sheet (Thick & Large 11 5/8 x 16 1/2) - Non-Stick Silicon Liner for Baking Pans & Rolling - Professional Grade Nonstick Mat for Macaron, Pastry, Cookie, Bun, and Bread Making by Gelin Sepulveda

I've had them for over a year now and they're still in perfect condition. I use them for cookies, for roasting vegetables, literally every time I put a baking sheet in the oven I use it. Sometimes they get marked when I use high heat, but that always gets removed with a good scrub. Nothing sticks to them as long as you cook them fully. I have found that they usually need to be hand washed as grease doesn't wash out in the dishwasher and they are not suitable for biscuits if they have grease on them.