Tupperware Thermo-Duo White/Anthracite 3.5 litres. Inner bowl dimensions: L 29.0 cm x W 22.7 cm x H 13.8 cm. Dimensions of the outer bowl (4.3L) L 30.0 cm x W 23.5 cm x H 14.0 cm + 2.5 litres. Inner bowl dimensions: L 29.0 cm x W 29.0 cm x W 2.7 cm x H 10.3 cm. Dimensions of the outer bowl (3.1L) L 30.0 cm x W 23.5 cm x H 10.7 cm + 1.5 litres. Dimensions of the inner bowl: L 29.0 cm x W 22.7 cm x H 7.2 cm. Dimensions of the outer bowl (2.1L) L 30.0 cm x W 20.0 cm x 2.7 cm. 3.5 cm x H 7.5 cm. The bowl can also be used separately. By assembling the bowls, a double wall insulated with air is formed. The name "Tupperware" is legally protected and is only used here as it is part of the item and indicates the quality of the product.