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 skin irritation. Sharp: This upgraded replacement head improves shaving efficiency and saves time. The sharp blades reduce pulling on whiskers and hairs. 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 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 above package content is included; other items are not part of this package. Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.