All products are made with a non-toxic resin material. All products are dishwasher and hand wash safe. Products like jewlery trays,rolling trays and keychains will bend if you leave it in a warm area due to thinner layers of resin. If a product bends just simply run it under hot water then leave it on a flat surface until it cools and levels out. If you have any questions feel free to email me using the contact page.