Metal clip ensures combs lasting fit to blade. Glass and mineral filled plastic seamlessly glides through hair for smoother cutting experience. Rounded comb teeth provide more pleasant cutting experience to clientele Fits all Wahl full size clipper blades except for Competition Series blades. 1 set contains the following: #1 Guard, #2 Guard, #3 Guard, #4 Guard, #5 Guard, #6 Guard, 7 #Guard, #8 Guard & Guard Tray Holder.