Millers Forge Universal Snap-on Combs are designed to fit Andis®, Laube®, Oster®, and Wahl® clippers. Combs increase the usefulness of electric clippers by controlling the depth of the cut, allowing you to cut hair to a uniform length. Easy to use: simply attach comb to the base of the blade and pull up to secure. Can be snapped on to #40, #30, and #10 A5 blades. The Millers Forge Universal Snap-on set of six combs includes one each of combs in Size 1 (5/8" cut), Size 1 1/2 (1/2" cut), Size 2 (3/8" cut), Size 3 (5/16" cut), Size 4 (3/16" cut) and Size 5 (1/16" cut).