Personna Tri-flexxx Refill Cartridges feature three blades aligned with precision to shave close with one stroke. Flexing blades adjust to the contours of your skin for a close, comfortable shave.Quantity: Four (4) packs of four (4) cartridgesNumber of blades per cartridge: Three (3)Soothing stripSkin guardFits Personna Tri-flexxx and Sensor razors (sold separately)Due to the personal nature of this product we do not accept returns.Due to manufacturer packaging changes, product packaging may vary from image shown. Due to manufacturer packaging changes, product packaging may vary from image shown.