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 effectively capture whiskers and hairs. This ensures a safe and smooth shave without skin irritation. Sharp Blades: This upgraded replacement head improves shaving efficiency and saves time. Sharp blades reduce pulling on whiskers and hair. Easy to Install: Replace the shaving heads in minutes. After installation, apply a small drop of oil to each head and run the shaver for 10 seconds to ensure proper operation. For best results, replace 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 above package content is included; other items are not part of this package. Note: Light reflection and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement error allowance is +/- 1-3 cm.