SAFE MATERIAL-- dough moulds are made of high quality 100 % food grade silicone with fine workmanship,featuring FDA approved, BPA free,eco-friendly,odorless,stain resistant, durable and safe to use.SIZE--29 x 17 x 2cm/11.4 x 6.7 x 0.8 in. DURABLE SILICONE MUFFIN TRAY--Freezer, microwave,oven and dishwasher safe. MKNZOME baking trays are heat resistant from -40 C to 230 C(-40 to +446 degrees Fahrenheit). FOLDABLE &EASY TO CLEAN --Soft, flexible and non stick silicone material not only allows the baking tray to be folded storage without damage,but also for easy release and quick clean-up.Dishwasher safe or wash them by hand with warm water for best cleaning results. GREAT BAKEWARE SET-- chocolate and sweet silicone moulds are great party favors for weekend treats ,school parties, fall festivities, pirate themed parties, birthdays & baby showers.Also a special gift for your family and friends(especially baking enthusiast). MULTI FUNCTIONS--Perfect for making hand made soap,ice cube,lollies, chocolate bombe,dome mousse, jelly,pudding, ice cream cake, cheescakes,cookies, candles, hard candy, fondant, Jell-O gelatin, dog treats, frozen yogurt treats, ice cubes with fruit juice,quiches muffin, egg muffin, brownies, meat loafs, cupcake, small chicken pot pies, mini quiches, bread etc.