Thank you for viewing. This is an authentic RAKUNA product. There is some minor dulling 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 from side to side. Please refer to YouTube, etc., for usage instructions. As this item is stored at home, 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 SHIATSUBOs. It's an item that allows you to relax easily 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 Origin: China Returns are not accepted after purchase. Thank you for your understanding.