The Vincent PSI 50mm Single Edge Blades VT306B are packed in their own injector-style dispenser for fast, easy, and sage blade installation. The cartridge also features a slot for disposing used blades. This thin, stainless steel blade allows greater edge flexibility to better confirm to facial contours. The PSI blades are designed to fit the Feather Artist Club and our PSI razors. 50 blade per pack, 10 packs per carton. Sold as 1 pack.