Anchor Hocking 6-Cup Rectangular Food Storage Containers with Red TrueSeal Airtight Lids, Set of 4 Set of 4 True Seal Containers with Red Airtight Lids 6-Cup rectangular glass containers with red True Seal lids Soft, pliable parameter allows for easy use Industry best seal technology Superior True Seal keeps food fresh longer Transparent window for viewing contents Glass is dishwasher safe Use top shelf of your dishwasher when washing the lids Glass is made in the USA