1.100% silicone material of food grade which has passed FDA, LFGB certification. 2.Thermal stability from -40°C-230°C with the characteristic of heat protection and insulation. 3.can be safely used in wash machines,microwave oven,refrigerator and so on. 4. non-adsorbed dust and oil,high wear resistance,easy to clean and be stored. 5 without any deformation. 6.Various colors ,shape or style and specification can be chosen, samples can be made as your requirement. 7. the design of your own is welcomed.