Small: outer diameter 12cm inner diameter 9.7cm bottom diameter 9cm height 5.8cm capacity 300ml Medium: outer diameter 14cm inner diameter 11.6cm bottom diameter 11cm height 6.4cm capacity 600ml : outer diameter 16cm inner diameter 14cm bottom diameter 13cm height 7.5cm capacity 1100ml Great for school, nursery, picnics and travel. Children's Stainless Steel Containers and Stainless Steel Lid Storage Boxes color:Photo color Material:Stainless Steel + Silicone Package Contents: 3 x Stainless Steel Containers With Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.