General description Compatible with SH30/50/52 replacement heads, these razor blades are designed for use with Electric Shaver Series 1000, 2000, 3000, 5000, S738, AquaTouch (S5xxx, AT8xx, AT7xx), and PowerTouch (PT8xx, PT7xx) series shavers. Each replacement head features 9 sharp blades that provide an effective and clean shave, ensuring your beard disappears without a trace. The heads are washable for easy maintenance and designed with a 360-degree rotation to protect your skin from scratches. Technical specifications Color: Silver Material: Metal Package Contents: 24 x Shaving Head Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with Series 1000, 2000, 3000, 5000 Also fits AT750/AT899, PT710/PT880 shavers Compatible with SW5700, SW5710, SW5720, XZ5800, XZ5810, HQ7100/HQ7390 Installation Step 1: Ensure the shaver is turned off to avoid injury. Step 2: Press both sides of the buckle to remove the shaving heads. Step 3: Gently rotate the shaving head