Keep it clean
If you want your shaver to give you a close shave, you have to keep it clean. So by keeping the cleaning system full and ready to go, you can keep it clean. You get three refills, so you don't have to reorder anytime soon.

Great shaving system, these work perfectly
I have had this shaving system for over a year. It has worked perfectly and has stayed clean due to these little refills. They are quick and easy to replace, you just have to be careful not to spill when opening the new one. The only drawback I have is that they only last about a month or so.

Great Product, Could Be Cheaper
I have been using Braun shavers pretty much since I started shaving. I tried Norelco a few times (my old man is a big fan) but for me the foil shaver is the way to go. I now have one of Braun's later models that uses the Clean & Renew base and I could not be happier with it. Pop the shaver in for about an hour (I'm not sure how long the actual cycle is, I just set it and go) and the razor comes out like new. It smells great and shaves better too. I purchased these cartridge refills from Amazon because they offer the best price of anyone else. I ordered the 3 refills and got a 3-month subscription (which made it even cheaper), figuring I will go through about one cartridge per month. I do wish the cartridges cost less, and I keep reading that if you plug the cover back into it you can make them last longer, but either way they definitely do their job.

Review of Shaver Clean System
I used to have trouble finding the refills online at reasonable prices, but now they're readily available from Amazon.com. This is the best price I have seen on these items, and I have ordered before on E Bay for more cost, so I really stocked up here.

Good stuff
This is good stuff. I used it with my Braun shaver. This really helps get the whiskers up to get a close shave. Well worth the price.