Material: The shaver blade is made of high-quality materials, suitable for both wet and dry shaving, and is washable. Fine Protective Net: The protective net features rounded edges that fit comfortably to your face, with precision slots designed to capture whiskers and hairs, providing a safe shave without scratching. Sharp Blades: This upgraded replacement blade head enhances shaving efficiency and saves time. The sharp blades help avoid pulling on whiskers and hairs. Easy to Install: Replacement of the shaving heads can be completed in a few minutes. After installation, apply a drop of baby oil on each head and run the shaver for 10 seconds to ensure 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: 6 x Shaver Blade Note: Light reflection and different display settings may cause slight variations in the color shown in the image compared to the actual product. Measurement may vary by +/- 1-3 cm.