CUSTOMER SATISFACTION GUARANTEE: We prioritize your satisfaction and offer a 12-month warranty on our shaver heads. If you are not completely satisfied, we provide a no-questions-asked refund or replacement. EASY REPLACEMENT PROCESS: These shaver heads are designed for easy installation, fitting perfectly with your electric razor and ensuring a fresh shaving experience. PACKAGE CONTENTS: The pack includes 3 high-quality replacement shaver heads, designed to match the high standards required for a smooth shaving experience. PRECISE & COMFORTABLE SHAVING EXPERIENCE: Equipped with premium fine steel blades, these heads offer a gentle and thorough shave. The innovative self-sharpening technology keeps the blades sharp with each use, enhancing performance over time. WIDE SHAVING MODEL COMPATIBILITY: Our replacement shaver heads are compatible with a broad range of electric rotary razor models. They fit seamlessly with popular Series 1000, 2000, 3000, 5000 shavers, S738, and models like AT8xx, AT7xx, PT8xx, PT7xx.