Thank you for viewing. I purchased this around the summer of this year, but I haven't used it much and have been storing it at home. There are no noticeable stains, but please understand that this is a used item, and those who are concerned about minor details should refrain from purchasing. No box The main body is in good condition. Reference price: Shop Channel 12,800 yen The product description is copied from Shop Channel. Product Features This is an exercise seat that allows you to exercise with a "walking sensation" while sitting, by bringing your elbows in, swinging your arms, swaying your pelvis from side to side, and raising and lowering your knees. It's easy to carry and blends in with any interior, so you can use it anytime you want, whether in the living room, Japanese-style room, or office. We also recommend a simple exercise of swaying forward and backward or side to side while sitting, focusing on the muscles around your abdomen. With the manufacturer's uniquely developed 3D pelvic support design, you can be aware of good posture just by sitting, and it supports the area around your pelvis. You can use it on the floor or on a chair. *Please refrain from exercising if using on soft and unstable surfaces such as sofas. Specifications/Details [Material/Material/Ingredients] ・Main body: (Side fabric) Polyester, polyurethane (Filling) Polyurethane (Core material) Iron [Size] ・Main body: Approximately height 25 x width 41 x depth 38 cm Seat height: Approximately 5 cm [Weight] ・Approximately 1.3 kg