Material: The shaver blade is made by high quality material which enables both wet and dry shaving and it is washable. Fine Protective Net: The rounded edges of the protective net 360 degrees fitted to your face, and the precision slots easily to catch whiskers and hairs. You can enjoy a safe and smooth shaving without scratching. Blades: This upgraded blades replacement head increases your shaving efficiency and save your time. blades also avoid pulling your whiskers and hairs. Easy to Install: You can replace the shaving heads in a few minutes. After installation, place a tiny drop of baby oil on each heads and allow shaver to run for 10 seconds to your shaver run properly and smoothly. For maximum shaving performance,please replace your 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. Colour:silver Material:plastic+metal Package Contents: 18 x shaver blade Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.