Material: PP Body Size: Concave type (approx.) 36.5 x 32.5 x 28.5CM; N type: 23.5 * 34 * 27 * 27CM Weight: (approx.) 1kg Purchased on Amazon for 5699 yen and used for 2 months for my parent's care, but no longer needed, so I am selling it. Features: The groove design is comfortable and non-slip (photo 4), has good load-bearing capacity, and is sturdy and durable. You can wash the intimate area while sitting without lifting your waist. Suitable for various people. Can be used by the elderly, children, and pregnant women.