1. High-quality materials, continuous, efficient and easy to use. 2. suitable Philips: SH30 replacement heads are compatible with Shavers Series 1000, 2000, 3000 shavers, S738 Click and Style; Please check the model of your shaver models before purchasing, you should know the SH30 replacement head isn't compatible with Aquatec Series 3. The shaving head should be replaced every 18 months. 4. Changing the shaving head can increase the shaving effect by 25%. best performance, clean regularly. 5. Replace the head to restore your shaver to performance High quality and durability. Easy to install. Sealed container. Colour:silver Material:metal Package Contents: 3 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.