These replacement blades are for the FEATHER Switch Blade Shear 4.5". FEATHER® Switch BladeTM Shears are sharp, perfectly balanced and always ready for the most precise and creative cut your clients expect from you. Never waste your valuable time sending dull shears out to be sharpened. When FEATHER® blades begin to dull, simply snap in a new Feather Replacement Blade and continue cutting. The revolutionary "No-Nip" tip Switch Blade Shear by the revolutionary company FEATHER® brings simplicity and ease of use to the shear world.