13 Different Edges: Equipped with three different edges: round, pointed and scalloped. Adjustable massage strength function, whether you need gentle soothe or intense relaxation, it can easily meet your needs. 2Portable: Compact size and delicate design, it can easily fit into your sports bag, office bag or travel bag without taking up too much space. Whether you are resting at home, taking a lunch break in the office, or travelling, or after sports and fitness, you can take it out anytime and anywhere to enjoy a comfortable massage. 3Versatile: It is not only suitable for neck, but also can easily massage the muscles of shoulder, arm, back, waist, legs and feet and many other parts of the body. Whether it is sore shoulders and neck due to prolonged sitting work or sore muscles after exercise, it can provide effective relief. 4Fast and Efficient: With simple use, you can apply traction to your neck to help soothe stiff neck muscles and correct neck curves. Long term use also helps to restore the correct cervical curvature associated with constant use and prevent cervical spondylosis. 5Material: Made of rubber material, it is soft and comfortable, and has great durability and anti aging properties. No deformation or damage will occur even after prolonged use or frequent cleaning. Let you enjoy the massage and feel the peace of mind guarantee at the same time.