This is a set of two pelvic chairs that allow you to exercise while correcting your posture just by sitting. I've used them once or twice, and they are in good condition. There are no noticeable scratches or stains. I'm selling them to organize things for my move. ★They are more expensive if purchased individually, but it's possible to buy just one! Price per unit: ¥15,437 ⭐︎If you're interested in pelvic correction, you can easily correct your posture while watching TV, etc. How about it? ※Please refrain from purchasing if you are overly concerned about minor details. ※Packaging will be simple. ※The color may differ slightly from the photos, please understand. Colors: Red, Brown Size (approx.): Width 37 x Depth 42 x Height 37cm Weight (approx.): 2.0kg Materials: Body: Urethane, Iron Cover: Polyester Weight capacity (approx.): 80kg Suitable size (approx.): Up to 100cm hip circumference Country of manufacture: Taiwan ★You can achieve beautiful posture just by sitting. ★The T-shaped backrest and inclined seat support your pelvis in the correct position. ★It also helps with muscle training. ★You can use it in any position you like, such as sitting with your legs extended, cross-legged, or seiza. ★Muscle activity increases by approximately 160% just by sitting! (※Compared to when not in use, the muscle discharge of the external oblique muscle (according to Chiba University)) In addition to the pelvis being in an upright position, the unstable base allows you to efficiently target the muscles around the pelvis.