Size 1 blades are the longest blade size we stock. Depending on the brand, a size 3 leaves the coat around 25mm (longer if you clip with the direction of coat growth). A popular body and legs length blade for: Terriers, Bichons, Shih Tzus, Collies and Poodles or any coat type you'd like to be around 25mm. HT = High Taper. FC = Finish Cut. ST = Skip Tooth.