Specifications: 100 Count - 33 x 45.5 cm (13 x 18 in) Length Excludes Zip - 51 µm (2 Mil) Clear Sealable Zip Bags - Clear Virgin LDPE Plastic. Secure Airtight Grip Seal: These clear resealable poly bags feature a strong, airtight and water-resistant grip seal closure to help protect contents from moisture and dust. Sized 33 x 45.5 cm (13 x 18 in), ideal for packaging, storage and dispatch. One Touch Seal: Our reclosable plastic bags are easy to instantly and securely self seal, speeding up shipping & mailing operations without the need for impulse sealers or tape. Great for fulfillment. Storage and Organisation: These bags make it easy to organise and store your crafts, sewing supplies & other small parts. They're also great for industrial, food service and medical industry applications. Food Grade Safe: Durable, odorless, and non-toxic, our 33 x 45.5 cm (13 x 18 in) clear zip bags are ideal for storing and packing food.