Smelly Proof SP-HSMBK10 Double Track Zipper Reusable Storage Bag, Black, Small 6" x 4", 10 Pack Smelly Proof bags are designed to keep odors out of almost any environment and inside the bags where they belong Constructed of nylon reinforced plastic, the bags are medical grade, durable, reusable; exceed USDA standards for storage food items; hand wash recommended Double-track zipper ensures a tight seal keeping food fresh; bags are liquid, moisture, and puncture resistant Great for indoor or outdoor use; keep the fridge odor free by storing cheese, fish, onions and other Leftover smelly foods or use to store camping meals and organize camping supplies Smelly Proof products have been an industry leader since 2000 and are proudly made in the USA