Food grade silicone and ideal size. BPA-free food grade silicone - FDA certified, non-slippery, flexible enough to grab a hot dish. Dimensions: 23 x 30.5 x 0.6 cm. Multifunctional: can also be used as a trivet, jar opener, cutlery rest, drainer, garlic peeler, hot or cold protection . Lightweight and heat resistant: it distributes heat to better protect your hands. Safe to use in all situations: withstands extreme temperatures ranging from - 6 to + 230°C. Perfect for use with an oven, microwave, or freezer. Easy to store and durable: you can roll it up or hang it on a hook. This product is easy to wash by hand or in the dishwasher. It has been tested to withstand repeated twisting.