【Materials】 This onigiri case is made of bamboo, which has a natural texture. It is environmentally friendly and uses sustainable materials. 【Shape and Size】 It has a rectangular design, with sizes of approximately 18cm wide x 8.5cm long x 5cm high and 13cm wide x 6cm long x 4cm high. It is perfect for storing onigiri and lunches. 【Functionality】 It has a lid, making it convenient for carrying. - Material: Bamboo - Shape: Rectangular Thank you for your understanding.