Crocodile Creek Traffic Jam Sandwich Keeper No more sandwich bags! No more lost lids! This eco-friendly, reusable, one-piece sandwich and food container makes school lunches easy and fun. Solid construction prevents crushing! Perfect for school lunches or other meals on the go. Made of polypropylene. BPA free and Phthalate free. Sandwich keepers are 5.25"H x 5.5"W x 2"D. Hand washing recommended.