Need to freshen up your shaving routine? These Philips Series 1000/3000 Replacement Shaving Heads are just the ticket. They're designed to work with Shaver series 3000 and 1000, giving your trusty razor a new lease on life. The pack comes with three shaving heads, each featuring ComfortCut blades for a smooth, comfortable shave. To keep your shaver in top form, it's a good idea to swap out the heads every couple of years. This simple change can make a big difference in how well your shaver performs, helping you get a closer, more comfortable shave day after day. The part number for these replacement heads is SH30/51.