model: Compatible with Wahl Professional 5 Star Replacement Finale Super Close Foil and Cutter Bar Assembly (#7043/7031-100) Compatible with the Wahl 5-Star Finale Shaver (#8164) (#8061-100) Professional precision:Professional's 5-Star Series Finale Replacement Foil and Cutter Bar Assembly for all-in-one replacement package for the Wahl Professional 5-Star Series Finale Shaver (#8164). This shaver cuts razor close for the ultimate finishing job on a variety of cuts; intended for professional use only Product Process: the replacement package includes a hypo-allergenic gold foil and a gold cutter bar assembly,Designed to get the closest shave possible without being painful or irritating After Sale: If you can't install it, you can refer to the instructions on the back of the package or contact us in timewe will solve it for you within 24 hours