Material: The shaver blade is made of high-quality materials, suitable for both wet and dry shaving, and is washable. Fine Protective Net: The rounded edges of the protective net provide a 360-degree fit to your face, and precision slots help efficiently capture whiskers and hairs. This ensures a safe and smooth shave without scratching. Sharp: This upgraded replacement head enhances shaving efficiency and saves time. The sharp blades reduce pulling on whiskers and hairs. Easy to Install: Replacement of the shaving heads can be completed within minutes. After installation, apply a small drop of oil to each head and run the shaver for 10 seconds to ensure proper and smooth operation. For optimal performance, replace the shaving heads every 12 months. Compatible With the Following Models: PT724/41, PT729/41, S738/17, S738/82, S1150/81, S1160/81, S1570, S1560/81, S3310/81, S3310/86, S3560/81, S3560/86. Color: Silver Material: Plastic + Metal Package Contents: 9 x Shaver Blade 6 x Shaver Blade 3 x Shaver Blade Only the items listed above are included; other products are not included. Note: Due to light reflection and differences in display screens, the color in the image may vary slightly from the actual product. Measurement may vary by +/- 1-3 cm.