LEM Products 6in x 10.75in Freezer Sheets - Non-porous polyethylene sheets prevent items from sticking together when frozen. Stacks are easily broken apart. These sheets are FDA approved and are greaseproof, waterproof, and non-absorbent. Features 1,000 sheets per box 6in x 10-3/4in HDPE clear film Microwaveable and freezable Thickness= .45 mil BPA free