Gift set of four BPA-free silicone lids that work on a wide variety of materials including stainless steel, glass, plastic, ceramic - even wood. Withstands temperatures ranging from 220°C to -40°C. The silicone lid acts as a large suction cup which creates an airtight seal that insulates both hot and cold foods, deters pests, and preserves freshness and flavour. Set of four, diameter 28cm, 23cm, 15cm and drink cover. Easy to clean. safe for use with ovens, microwaves, fridges, freezers and dishwashers.