The Wahl Premium Guide Comb Kit features 8 guide combs from #1 (3mm) to #8 (25mm) for all your cutting needs. With metal clips for blade security and ballpoint tips for smooth and easy cutting. Guides seamlessly glide through hair for smoother cutting without irritation or discomfort. Fits all Wahl professional vibrator clippers. (Model #53110) #1 - 1/8” (3mm) #2 - 1/4” (6mm) #3 - 3/8" (10mm) #4 - 1/2” (13mm) #5 - 5/8” (16mm) #6 - 3/4” (19mm) #7 - 7/8” (22mm) #8 - 1” (25mm) Who is it for? Those looking for premium cutting guides What does it do? Provides smooth, easy cuts