Soak proof. Craft savings creatively! Mom crafts big savings in whatever ways she can. Valu Time soak proof foam plates provide big savings and quick clean-up, so she can get out of the kitchen and on to other things as quick as a bunny! Valu Time 0 hop on big savings! Recommended only for limited microwave use in reheating foods such as sandwiches, crackers and breads. Microwaving many foods and liquids may melt plate and cause injury. Always check plate and use caution when removing from microwave. This product, when properly incinerated, produces harmless carbon dioxide and water with no ash residue. It is inert in a landfill and does not contribute to ground water contamination. no chlorofluorocarbons (CFCs) have been used in the manufacture of this product. www.valutimebrand.com. The contents of this bag are plastic no. 6: polystyrene (PS). Satisfaction guaranteed or your money back. This bag is made from plastic no. 4: low density polyethylene (LDPE). Made in USA.