Great for trimming a beard Four different sizes allows you to trim the beard to the length you like Easy to snap on and off the blade 4-combs bagged 2 1/2-oz Sizes: #0, 1/16 inch , 15 mm #1, 1/8 inch , 3 mm #2, 1/4 inch , 6 mm #3, 3/8 inch , 10mm fits t-blade only fits andis t-blade trimmers: pmt-1 #23475 pivot pro or #23770 elevate pivot pro, pmt-2 #23390 t-liner, or #32375 power trim or #32840 cordless rechargeable and d-5 #23900 power trim + (t-blade) andis item # 23575 each comb is all black plastic