Stainless steel 18/0, Dia. 32cm, Height 0.6cm, ergonomic design. material thickness 0.7mm, two sides mirror polish, shape is like a UFO, Have breather holes one the rising area, 4 fillisters to fit dia 24cm,26cm 28cm and 30cm pans. brand new design, we have the patent ourself. pan lid, kitchen lid. universal lid