The Shernbao set of 8 stainless steel comb attachments cover all the most popular coat lengths in one set, from 3mm to 25mm. They fit on all brands of A5 blades on both size 10, 15 and 30 blades. Check the blade and clipper guide below before you buy. Stainless steel combs are recommended for all coats including difficult coats (thicker, double, mixed texture, curly etc) for a more secure fit than plastic combs. Plastic comb set storage box is included.