From Wahl Professional's commercial grade line of products, the Adjusto-Lock Clipper Blade set is intended for professional use only and is designed to deliver the sharp performance that experts demand. The standard replacement blade set for the Wahl Senior, Cordless Designer, Vacuum Clipper, Pilot, and Designer. Sterling Collection its standard on the Nugget, Sterling 1 Plus, Cordless Sterling 4 and Sterling 4, making it ideal for many of the clippers in your Wahl Professional collection. Package contains (1) Wahl Professional Adjusto-Lock (1mm 3mm) Clipper Blade set #1005. Silver in color. Three-hole blade. Includes oil, screws & instructions. Standard replacement blade set for Wahl models #8500, #8566, #8591, #8483, and #8355-400. Standard replacement blade set for Sterling collection models #8482, #8481, #8074-200, and #8700. Blades made in the U.S.A. Blades made in the U.S.A.