In two years, your Philips shaver heads cut up to 9 million hairs on your face − replace the shaver heads and get your electric razor back to 100% performance Get a clean shave with 27 high-performance self-sharpening PowerCut blades made of Swedish steel and up to 55.000 cutting actions per minute* To ensure optimal performance of your face shaver, use only genuine replacement Philips Shaving Heads that are made in Europe Compatible with Philips electric shavers Series S1000 (S1XXX), S3000 (S3XXX), Star Wars shaver SW3700, S5000 (S546X); not compatible with S55XX and S58XX This set includes 3 shaving heads with PowerCut blades