PHILIPSReplacement Shaver Head for Series 9000 & Prestige S9000 Precision Blades

They do shave a lot better than my previous heads that were SH70- the SH heads without the two protruding nubbins (SH90, 91,70,71,60,61) are interchangeable between various shavers that use them, so you don't have to stick to the lower-end heads if you have a different shaver. These blades are original and new. They do shave noticeably closer than SH70, maybe even too close. For best results you should run them for a few minutes dry before first use to get rid of any oxidation, and the lubricate them before first use. The also have a break-in period of about a month after which they shave much better than straight out of the box. Also to extend their life do what I did and number each stator and its corresponding rotor with a knife or needle, so that they are a pair and go back together after each cleaning- this will ensure that any surface imperfections of the rotor are conformed to by its corresponding stator as the head wears and are not propagated to the other pairs (this is what they call "self-sharpening", the blade wears in a way that makes it conform better to the cup, and cup wears in a way that conforms to the blade). Alternatively, when cleaning remove and clean the pairs one by one so they don't get mixed up. Also washing the shaver with a Waterpik makes it shave really well and I highly recommend it.The SH50/51/30/31 have the two nubbins and won't fit shavers that don't have space for them (and SH60-91 might not work in some of these shavers due to the lack of nubbins), and the RQ heads are a bit smaller than SH.

Best electric shaver heads bar noneWhy did you pick this product vs others?:made the mistake of trying to get a cheaper option. Big mistake. Ended up wasting money. Pay the extra money the first time and be happy with Philips Norelco quality.

Why did you pick this product vs others?:they fit my razorShave quality:GreatEase of cleaning:Rinse offComfort:Great shave Ease of use:No problems

Have not used yet but sure it is good.

Why did you pick this product vs others?:Easy to replaced, what a difference with new blades

Norelco states that these need changing every two years. THere is even a little extra noise when you turn the razor on to remind you. These fit right in and work like new.

Perfect, and fast shipping.

Great product.