About product and suppliers:
            1,593 head relief products are offered for sale by suppliers on Alibaba.com, of which physical therapy equipments accounts for 5%, elbow & knee pads accounts for 1%. 

A wide variety of head relief options are available to you, such as 1 year, none, and 2 years. You can also choose from online technical support, free spare parts, and return and replacement head relief, as well as from class ii, class i, and class iii head relief

There are 1,308 suppliers who sells head relief on Alibaba.com, mainly located in Asia. The top countries of suppliers are United States, China, from which the percentage of head relief supply is 1%, 97% respectively.