Manufacturer: Japan Tupperware Brand: Rainbow Cooker Size: Outer diameter of pot: 21 cm Inner diameter of pot: 17 cm Height: 8.5 cm Usable environment: Gas, IH The appeal lies in its highly efficient 7-layer construction and water seal (a film of water formed between the body and the lid) that prevents the escape of deliciousness. For those who understand that this is a used item, Thank you in advance. Thank you for viewing. Shipping will be size 80.