[Wide Compatibility]Replacement blades for clippers compatible with wahl corded or cordless clippers, for wahl professional: 8148, 8504, 1919, 8591. Not suitable for trimmers. [Tips]Scissors blades are made of Carbon steel, please keep the blades oiled.The blade has been oiled when shipped and may be contaminated with dust during transportation. Please carefully check the size of the blade and the hole position to ensure that it is suitable before purchasing. [Easy Installation]These scissor replacement blades are easy to install, all you have to do is follow the instructions for a very convenient installation. [High Quality]The blades are made of high quality steel material with excellent craftsmanship, providing sharp performance for haircutting. [Professional Precision]Blades and movable blades, both with 2-hole design. Adjustable blade clearance, long-life blades that stay sharp, standard replacement blades for professional use only. Colour:B Gold & Black / A Silver & Black / D Multicolor & Black / C Black & Black Material:Stainless steel + ceramic Package Contents: 2 * Replacement Clipper Blade Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.