CERVICAL COLLARA medium density foam collar covered with a cotton stockinette material. Contoured design allows for use in either the flexed or extended position For neck extension injuries e. g.: whiplash. RA and OA of the cervical spine Mild control High comfort Simple Velcro closure Machine washable 3 sizes Sizes Available Measure Neck Circumference Width (height) Small 28 38 cm 3. 6" (9. 1 cm) Medium 33 45. 7 cm 3" (9. 5 cm) Large 38 50. 8 cm 4" (11. 43 cm)