Specification: Product Name: Butterfly Pillow Pillow Material: 100% polyurethane memory foam Jacket: breathable mesh + polyester fiber + tencel Washing and maintenance: the pillow cover can be removed for cleaning Size: 62*41*13*11cm/4.41*16.14*5.12*4.33inch Features: 1. Butterfly-shaped slow rebound space memory foam cervical pillow, contour pillow for neck and shoulder pain, ergonomic orthopedic sleep neck contour support pillow, so you can experience a different sense of comfort. 2. The pillow apparent and sides are contoured to meet your various sleeping positions, can fit the head well, so that the cervical spine in sleep completely relaxed, unique design of the let go position, so that the shoulders more comfortable, so you quickly into a deep sleep 3. Pillow core is high-density memory foam, with excellent pressure-release properties, supporting the head under the gravity of backward tilt, forming a natural traction on the cervical spine. 4. Lined with yarn woven fabric, breathable and elastic. Removable and washable silky skin-friendly pillowcase, soft and breathable, natural skin-friendly, sweat-absorbent, breathable, environmentally friendly, care for the health of the facial muscles. Package: 1X utterfly Neck Memory Pillow