Store, carry, heat, and serve homemade baby food—Our 4 oz. containers with lids are easy to store in the fridge or freezer to conveniently defrost or reheat fresh, homemade baby food! Tempered glass for your family’s safety—Durable, temperature-, and shatter-resistant glass cubes are chemically stable, so they won't absorb tastes or odors, or leach chemicals when heated. In the case of breakage, tempered glass breaks into larger chunks rather than shards for safer and easier clean up. Made from safer materials—Our baby food freezer storage containers are made without PVC and hormone-disrupting BPA, BPS, and BPF additives for baby’s health and safety. Flexible lid design provides a leak-proof seal—Lids with secure edges mold to glass cubes to prevent leaks and freezer burn. Perfectly sized for baby meal prep—Glass storage containers hold 4 ounces (118 mL) of food and purees with embossed measurements in ounces and milliliters for perfect portions.