Pro size for professional kitchens and serious home cooks; lifts a porterhouse or a stack of pancakes;The platinum silicone is heat resistant up to 550ﾃつｰF and nonstick safe;Proprietary fiberglass core offers better heat resistance than metal cores; these won't get too hot to the touch;Unibody design has no holes or seams, making it super hygienic and easy to clean; dishwasher safe;Manufacturer's 100% lifetime guarantee, made to last forever in your kitchen; BPA, BPS, and phthalate free