... are made of high quality silicone without any hazardous substance in them. Compared with the regular kitchenware, the silicone ones ... material, which have FDA&SGS approval2. Withstand high temperature from -40 to 220 centigrade3. Anti-dust, anti-aging, anti-stain, ... non-sticking, impermeable4. Safe to use in ovens, microwave ovens, diswasher and freezer5. Cool quickly and ...