Collini - Pet Stripping knife - 13 - fine Pretty smart tool for everyone - exclusive underocat remover as well as great for hand stripping. It can do actually all work - remove undercoat, full strip and be used for rolling. If you are considering to buy only one knife for all, go for Fine. It's our best seller, most popular knife. Also called ''the little yellow'', after a knife which was once existing, but his production stopped. Our knife is very alike in function to the ''old yellow one''. Fine knife has specially prepared sharpness, therefor it's not able to cut hair, but only remove together with roots.