?Packages & Services?: Package includes 3 x SH30 replacement blades and 1 x cleaning brush. Our products support 30 days return, if you are not satisfied with the use you can request a return from . If you have any questions about the SH30 shaver blades, please feel free to contact us and we will be happy to help you out. ?Easy to Install?: Replace the SH30 head in just a few minutes to replace a new head; After installation, drop a drop of oil on each nozzle and run for 10 seconds. It is recommended that you replace your shaving head once every 12 months for maximum shaving performance. ?3 Shaving Tracks?: The SH30 replacement head working with 3 shaving tracks cover 50 percent more skin surface at a time for a close and fast shave..Each rotary blade has 3 circular cutting services and these really provide an excellent shave. ?Close & Smooth Shave?: The SH30 shaver heads gently positions each hair in the best cutting position, cuts 30% closer in less strokes leaving your skin in great condition. The round, porous head design ensures that you won't scratch your skin and gives you a smoother shave. ?Product Compatibility?: Our SH30 replacement head fits for Philips Norelco Series 3000, 2000, 1000 PT724/41, PT729/41, S738/17, S738/82, S1150/81, S1160/81, S1570, S1560/81, S3310/81, S3310/86, S3560/81, S3560/86 and more.