Posture Correction Chair: Just sit! Cushion for preventing back pain. Office chair/gaming chair/floor/chair cushion. Pelvic support chair. Back pain relief chair. Lightweight, easy to carry. Supports up to 120kg. Gentle on the buttocks. Prevents herniated discs. Back pain improvement goods. Measures against hunchback and stiff shoulders. Beautiful buttocks. ‐ Mercari: Shop from Japan