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 has rounded edges and fits snugly to your face with 360-degree contact. Precision slots effectively capture whiskers and hairs, providing a safe and smooth shave without irritation. Sharp Blades: This upgraded blade replacement head enhances shaving efficiency and saves time. The sharp blades reduce pulling on whiskers and hairs for a more comfortable experience. Easy to Install: Replacement of the shaving heads can be completed in 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 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 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 may vary by +/- 1-3 cm.