Dinos: Orthopedist-Designed Lumbar and Pelvic Support Seat Color: Red Retail Price: ¥11,900 I bought this because I thought it was a good product, but I couldn't use it because my right hip joint is already in good condition and it caused me pain. Therefore, I am selling it. ◆ I don't think there are any noticeable stains or damage, but please forgive any oversights as my eyesight is not perfect. ⚠️ To prevent swapping, returns due to the buyer's circumstances are not accepted. Please understand. ⚠️ Please consider this item only if you understand that it is a used item and has been stored by an individual. ⭕️ I plan to ship via Takkyubin (Yamato Transport) in the 100-120 size range, including shipping costs of "¥1,050 - ¥1,200". (It will be wrapped in bubble wrap and shipped in simple packaging.) + A 10% commission is included in the selling price. [The following is a quote from the product description] Designed by an orthopedist to help you achieve a posture that puts less strain on your lower back. When sitting in a chair, unconsciously leaning against the backrest tends to tilt the pelvis... This seat makes it easier for the pelvis to stand up, leading to a natural S-curve posture that puts less strain on the lower back, from the neck to the buttocks. 1. Sacral Guard: Supports the pelvis from behind to make it stand up, preventing the back from rounding and leading to a posture that puts less strain on the lower back. 2. Front Guard: Prevents sliding forward and leg crossing. Sliding forward while sitting puts a lot of strain on the lower back. This guard supports from the front to prevent this. 3. Iliac Crest Guard: Prevents the pelvis from opening to the left and right. It gently rocks to align the pelvis & makes it easier to sit for long periods. If you sit still, pressure tends to concentrate in certain areas, making it difficult to maintain your posture. This seat has a rounded bottom, so you can gently move your body left and right, and forward and backward when you get tired of sitting. This relieves the strain and makes it easier to sit in the seat for a long time. Body Size ◎ Approximately 41cm wide x 37cm deep x 24cm high ◎ Weight: Approximately 1.8kg ◎ Seat Load Capacity: 100kg or less