Although unused, please note that the item has been opened once. ~ The following is a description from the product page. Genuine Braun Series 5 (compatible with 8000 series) Foil and Cutter Pack 51S (Overseas version of F/C51S-4). This is an imported product, so the packaging is in English, but the contents are the same German-made product as the Japanese version. Country of origin: Germany Material: PBT-GF (Polybutylene Terephthalate - Glass Fiber Reinforced) Weight: 17g Compatible with Series 5/8000 Series/Contour Pro 360° Complete Activator X/Activator. Compatible models BRAUN (Series 5/8000 Series) Series 5/8000 Series/Contour Pro 360° Complete 590cc-4 570s-4 550cc-4 530s-4 590cc 570cc 560 550 BS8385 BS8377 BS8374 BS8995 BS8991 BS8990 BS8987 BS8986 BS8985 8000 Series/Activator X/Activator BS8795 BS8790 BS8785 BS8783 BS8781 BS8595 BS8590 BS8585 BS8581 Shipping will be in simple packaging. Type...Shaver Replacement Blade