Guedel Airway---Color-coded a. Made of semi-rigid non-toxic polyethylene. b. All sizes. c. With CE mark . Guedel Airway Color- coded a. Made of semi-rigid non-toxic polyethylene.b. Color-coded for size identification.c. Size: 000, 00,0,1,2,3,4,5,6d. With CE markBerman types also available Guedel Airway-----Color-coded