Thank you for viewing. I purchased this to correct my child's posture at home, but my child only used it a few times, so I think it's in good condition. Regarding how to use it, the official YouTube video "norokka Children's Posture Course" is very easy to understand. Product Name: Children's Pelvic Cushion Manufacturer: norokka Color: Beige White Weight: Approximately 164g Size: (W)26cm (H)14cm (D)4cm Country of Origin: Japan Retail Price: 5,980 yen (tax included) Effortlessly improve your child's posture 【Features of norokka】 ● Cushion type that puts little stress on the body ● Compact and can be used with Stokke, making it easy to carry ● How to use it with posture videos (supervised by experts) that parents and children can learn together Anonymous shipping is planned. The item will be shipped as the main body only.