This set glass meal prep containers with lids including two different perfect sizes will better meet your need in organizing your meals or stashing leftovers. They are BPA-free and durable glass lunch containers. You could meal prep breakfasts, lunches and dinners for the work week to save your time and enjoy a healthy life style. Our glass food storage containers are made from borosilicate glass and can go from freezer to microwave or oven to table. Freezer and reheating would be easy. These glass storage containers are microwave safe, freezer safe and oven safe, excluding the lids. Each airtight locking lid is equipped with rubber seal to ensure these glass food containers leak-proof and keep food fresh and clean. These lids are easy to use. The rubber seal was designed to be removable for easy clean.