Rubbermaid Brilliance food storage containers are intelligently crafted and beautifully designed. These BPA-free plastic containers are built with an airtight leak-proof seal and secure latches. Crystal-clear lids and bases make it easy to see what's inside and are stain- and odor-resistant, which helps them stay looking like new. Featuring a splatter-free lid design, built-in vents allow steam to escape so you can conveniently microwave food without removing the lid. These food storage containers also save space, with a modular design that perfectly stacks in your fridge or lunch bag. 20-piece set includes (4) 0.5 Cups with lids, (2) 1.3 cups with lids, (1) 3.2 cups with lid, (2) 4.7 cups with lids, and (1) 9.6 cups with lids.