I purchased this online and used it a few times. There are no stains, and I still have the original bag, instruction manual, and cardboard box it came in, so I will ship it with those. (The bag is marked with "S," but this was how it came, and the product size itself is "DM," which is correct.) I understand you're purchasing this for your beloved pet, so I'm open to reasonable price negotiations. Brown nursing cushion Body only Not washable - Model Name: Relax Cushion DM - Color: Brown - Purpose: Prevention of bedsores/for nursing care I used it with a towel and pet sheet, so there are no noticeable stains, but please be aware of this. Retail Price: ¥20,900 Relax Cushion Pet DM Brown OneAid for dogs, nursing care supplies, bed, posture stabilization, for small, short-legged dogs