1 top qulity product 2,lightweight and comfortable, 3, instantly adjustable 4 soft&breathable sponge cervical collar They are medical treatment effectiveness and protecting effectiveness for human neck.(1) Size: large/middle/small,as the client's requirement.(2) Material:sponge,gouze(3) Feature:1, top qulity product2, lightweight and comfortable,3, instantly adjustable4,easyily washable5,soft and ...