Laube big k comb set of 6 comes with the following large size flat blade combs that will leave the hair cut the following lengths: size a (3/4", 19 mm), size b (13/16", 21 mm), size c (7/8", 22 mm), size d (15/16", ), size e (1", 25 mm) and size s (29/32", 23 mm). Full set of 6 also comes with a sturdy comb case to store them in. Laube big k combs are made of tough, impact resistant plastic that is rigid and resilient to extreme heat. All combs are assembled with a self-adjusting spring-loaded stainless steel posy-grip clamp. Big k combs lock on to all four sides of the blade for a snug, secure fit. Big k combs fit all universal sized snap on clipper blades. No tools required. Can be cold sterilized. Proudly made in U.S.A. Combs available in yellow.