Fuji Pax Sales Aura Ganbanyoku Hot Mat - No electricity needed, knee blanket, blanket, thermal mat, heat-retaining fiber, floor mat, cushion, for neck, shoulders, knees, and feet, multi-mat, quilt. Manufacturer: Fuji Pax Sales Color: Gray Size: M (approx. 56cm x 35cm) Purchased from an online shopping site for about 3,000 yen and used once on a bed, but selling because it's too small. (Outer bag torn: see photo 3) Please purchase if you understand that this is a used item.