Chef Tony"s Smart Lidz- Set of 4 Chef Tony"s Smart Lidz vacuum seal any bowl, jar cup or can - any size shape or material, helping food last longer than ever! Saves food, time and money with a vacuum seal. Just Press and seal. Leakproof! Microwave, freezer and dishwasher (top rack) safe! Press in to vacuum seal, lift tab to open! Includes: 1 x 4 1/4 inch Lid 2 x 7 1/4 inch Lids 1 x 9 2/5 inch Lid