Coghlan’s Odor Proof Storage Bags are made from ultra-durable, 3.6 mil food safe plastic. An airtight seal keeps odor and moisture from being released for weeks at a time. Each bag has a printed area for self labeling. Freezer safe, food safe and BPA free. Reusable. Can also be used for laundry, bait, personal effects, etc. SM: 6" x 6.5", 8 per package. MD: 8.5" x 10", 5 per package. LG: 12" x 16", gusseted for extra storage, 3 per package.