Wahl Comb Attachment Black Cutting Guide Set 1- 8 The Wahl Comb Set is the clipper comb kit that lets you decide what length to trim your hair with 8 differently sized hair guides that easily attach to your clippers. Affordably priced and with a handy organiser tray that keeps them in order, the 8 cutting guides come in a great array of sizes: No.1 plastic comb attachment 3mm cutting length No.2 plastic comb attachment 6mm cutting length No.3 plastic comb attachment 10mm cutting length No.4 plastic comb attachment 13mm cutting length No.5 plastic comb attachment 16mm cutting length No.6 plastic comb attachment 19mm cutting length No.7 plastic comb attachment 22mm cutting length No.8 plastic comb attachment 25mm cutting length