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.