This is a set of two T-fal sauce pan seal solids and two butterfly glass lids. Sizes are 16cm and 20cm, exclusively for sauce pans. Each has been used for about 5 years and shows signs of use. The 16cm glass lid has some melted silicone, but it was in use until recently and can be used without any problems. The seal solids haven't been used much, but both have scratches from contact. Please understand that these are used items before purchasing.