Compatible Models This SH30 replacement heads compatible with Series 3000, 2000, 1000 electric shavers and S738 S1211 S1560 Click and Style, include PT722/15, S738/82, S1150/81, S1570, S1560/81, S3310/81, S3560/81, S3800 New Upgrade SH30 replacement head blades for shaver is a double-precision cutting system using lifting and cutting technology, the sharp blades can cut through your beard quickly and you don't have to worry about the blades pulling your beard Comfortable Shaving The flexing heads keep the shaving surface in close contact with your skin for a fast and efficient shave. 360 degrees without dead ends remove your beard gently, painlessly and more clean. Can dry shaving and wet shaving Simple Packaging The package, which is easier to open than the original, contains 12 new upgraded SH30 replacement heads and is thoughtfully equipped with 2 shaver cleaning brushes. To get back to 100% performance, replace your shaving heads every 12 months Awesome G