Material: The shaver blade is made of high-quality material, enabling both wet and dry shaving, and is washable. Fine Protective Net: The protective net has rounded edges and fits 360 degrees to your face. Precision slots easily catch whiskers and hairs, providing a safe and smooth shave without scratching. Sharp Blades: This upgraded replacement blade head improves shaving efficiency and saves time. Sharp blades help avoid pulling on whiskers and hairs. Easy to Install: Replace the shaving heads in a few minutes. After installation, apply a small drop of baby oil on each head and run the shaver for 10 seconds to ensure smooth operation. For best performance, 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 Note: Light reflection and different display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.