The box has some damage and sun discoloration. Use it under your neck to create an arch in your neck. Place it under your calves while lying on your back to reduce swelling. Place it under your spine to correct rounded shoulders and a hunched back. Use it in your pelvis for exercises to align your pelvis. There are many ways to use it. It's not too hard and not too soft, so it doesn't hurt. It's highly recommended for people with stiff necks, hunched backs, and rounded shoulders. This is the "Aotake Exercise Pillow" used in chiropractic. Recommended by the Japan Adult Disease Prevention Association. Size: Width 45cm x Depth 12cm x Height 8cm [Materials] Fabric: 100% cotton, twill Core material: Polyurethane foam Cover: 65% polyester, 35% cotton Retail price: 9900 yen Chiropractic Zenkentai (All Health Association) Nihon Chokuhan Sohonzha (Japan Direct Sales Headquarters)