【Fukutsuji-style Pelvic Shape Pillow DX】 Although the instruction manual and outer box are not included, the main body is in beautiful condition. Color: Red Size: Width 44cm x Length 21cm x Height 15.5cm Materials: (Surface) Nylon, Polyurethane (Back, Sides) Polyester (Core) Polyurethane, Steel Product Description: By lying on the Pelvic Shape Pillow DX and arching your back to stretch your back muscles, and simply swaying gently, you can loosen the stiff muscles around the pelvis and position the muscles around your abdomen in the correct position. The two pressure protrusions on the outside and the six point protrusions on the inside gently massage the muscles around the pelvis.