About this item 【Unique Pop Lid Design】Our container adopt unique pop up design, Push the button to engage the airtight seal. The button doubles as a handle for the lid. One-handed operation, easy and convenient. 【100% Airtight】These pop top containers are airtight and leakproof to keep your dry foods fresh. 【BPA Free Material】Containers are made of durable food-grade AS material, safe for children and adults. 【Space Saving】The pop containers are stackable, making it easy to keep your kitchen pantry organized.