Eliminate the risk of cross-contamination in food storage with Purple Allergen-Free Seal Lids! The bright purple color clearly identifies allergen-free materials for food safety assurance in fast-paced kitchens. The snap-on Seal Lid is produced with an inner and outer gasket to keep ingredients fresh, safe, and secure. Seal Covers are designed with a hole in the corner so you can simply hang them on a clip board to dry quickly and save space.