GLASS MATERIAL EXCELLENCE IN QUALITY: Glass meal prep containers are made of superior borosilicate glass, for oven, microwave, dishwasher and freezer. Stronger than cheaper glass food storage containers, food can be stored in glass containers directly after cooking. The containers are versatile to meet your everyday food storage needs, pertains to prep meals at home or whatever you need for the occasion 30 PIECE GLASS FOOD CONTAINERS SET: 15 glass food storage containers with 15 lids with 3 shapes and various sizes for meal prep, office lunches, leftovers, portion control, bringing to the gym, picnics, travel and more. Package includes: 1 (33.8 oz) 1 (21.3oz ) 2 (13.5oz ) 1 (6.3 oz)1 (27.1 oz) 1 (16.9 oz) 2 (10.5 oz) 1 (5.4 oz)1 (31.5 oz) 121.5 oz2 (12.5oz ) 1 (7.3 oz) glass lunch containers with locking lids. They stack together and take up less space AIRTIGHT LOCKING LIDS: VERONES airtight glass lunch containers use Exclusive of BPA snap-lock lids. Make sure there are no spi