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. Can also be used for laundry, bait, personal effects, etc.Features:- Each bag has a printed area for self labeling- Freezer Safe- Food Safe and BPA Free - ReusableSpecifications:-  4" x 5.5" - 8 per package