Thank you for viewing. This is an authentic RAKUNA product. There is some minor discoloration from use. The box and instruction manual have been discarded. [How to Use] Simply lie down and align your head and neck to comfortably loosen your body. Relax by simply swaying your body from side to side. Please refer to YouTube or other sources for usage instructions. This item has been stored at home, so please refrain from purchasing if you are sensitive to minor details. The RAKUNA shoulder blade release pillow effectively loosens the muscles around the shoulder blades using 18 SHIATSUBOs and 2 additional ones. It's an item that allows you to easily relax at home. [High-Quality Materials] Made of polyurethane, it is lightweight yet durable. The design is from Japan and manufactured in China. - Brand: RAKUNA - Product Name: Shoulder Blade Release Pillow - Weight: 1120g - Size: 400mm x 270mm x 110mm - Material: Polyurethane - Design: Japan - Country of Manufacture: China Returns are not accepted after purchase. Thank you for your understanding.