Material: The shaver blade is made of high-quality material, 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. Enjoy a safe and smooth shave without scratching. Sharp: This upgraded replacement head enhances shaving efficiency and saves time. Sharp blades help avoid 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 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 are included; other products are not included. Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the photo and the actual product. Measurement error allowance is +/- 1-3 cm.