Feature:Easy to install. Clean the installing. Within 18 months on average, a for will cut an average of 6,000,000 hairs. In accomplishing this substantial task, the cutting parts will gradually wear out and your shave may become less and comfortable. Therefore we recommends changing your 's foil \u0026 cutter block 18 months to maintain your 's maximum performance. For a perfect shave day. Suitable for 5 series models: wfs1 wfs2 530 550 590 8585 8985 8995 8975 5643 5645 5646 5647 5649 5751 ContourPro550, ContourPro560, ContourPro570CC, ContourPro590CC colour: as shown Material: stainless steel Package Contents: 1 x shaving accessories Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +\/- 1-3cm.