Thank you for viewing. This is the Seita Support 3D Cushion, Za-W-Ion. Just by sitting on it, you get whole-body support. ★ Unique corrective action that supports the body three-dimensionally ★ Pressure distribution and postural support function through a multi-layered structure ★ Supports recovery with radium-based ions ★ Ultra-lightweight and compact design (washable) ★ Excellent breathability (mesh fabric) ★ Reliable, handmade in Japan Size (approx. mm): Width 490 / Depth 450 / Height 500 / Thickness 30 Weight: Approximately 600g Seller: Frescare Co., Ltd. Suggested Retail Price: 49,500 yen (tax included) I received this as a gift, but I won't be using it, so I am putting it up for sale. Thank you for your consideration. #Seita Support Cushion