This is a must-have cool neck for summer. The outer material is TPU, the inner is filled with pcm, and it will cure at 28 degrees Celsius. It can be used for outdoor sports or leisure activities, of course, it can also be used for recuperation and relaxation. The product size is approximately 6.30″ x 7.48″ x 0.79″, which fits most people’s neck size. We can print a logo on it for you if you want. The prices for 1200pcs or over are based on ocean shipments.