Use these Smart Lids to vacuum seal any bowl, jar, cup or can - any size, shape or material, helping food last longer than ever! No more fumbling with that peaky plastic wrap that keeps sticking together or searching through endless cupboards of unorganized tupperwear. Just press and vcauum seal with ease! Leakproof, Microwave, freezer and dishwasher (top rack) safe! This set comes with 1 small lid, 2 medium sized lids and 1 large lid... all for only £7!