The Shaver Blades Replacement for Norelco Series 5000 Shavers SH50/52 Shaver Heads Replacement for Compatible with Shaver series 5000 (S5xxx): S5008, S5010, S5011, S5013, S5015, S5040, S5050 S5051, S5070, S5071, S5072, S5073, S5074, S5075 S5076, S5077, S5078, S5079, S5080, S5081, S5082 S5083, S5085, S5086, S5090, S5091, S5095, S5100 S5110, S5120, S5130, S5140, S5150, S5310, S5320 Compatible with AquaTouch (S5xxx): S5330, S5335, S5340, S5351, S5355, S5360, S5361 S5370, S5371, S5380, S5390, S5391, S5395, S5396 S5397, S5400, S5420, S5510, S5520, S5530, S5540 S5550, S5551, S5560, S5570, S5571, S5572, S5580 S5590, S5600, S5620, S5630, S5640, S5650, S5651 S5660, S5670, S5672 Compatible with AquaTouch (AT8xx, AT7xx): AT750, AT751, AT752, AT753, AT754, AT755, AT756 AT757, AT758, AT759, AT760, AT770, AT790, AT791 AT796, AT797, AT798, AT799, AT800, AT810, AT811 AT814, AT815, AT830, AT872, AT875, AT880, AT881 AT883, AT884, AT885, AT886, AT887, AT889, AT890 AT891, AT892, AT893, AT894, AT895, AT896, AT897 AT898, AT899 Compatible with PowerTouch (PT8xx, PT7xx): PT710, PT711, PT712, PT715, PT717, PT719, PT720 PT721, PT722, PT723, PT724, PT725, PT726, PT727 PT728, PT729, PT730, PT731, PT732, PT734, PT735 PT736, PT737, PT739, PT761, PT762, PT763, PT764 PT786, PT845, PT848, PT849, PT856, PT860, PT861 PT862, PT866, PT868, PT870, PT871, PT874, PT875 How to use and replace: Step 1: First make sure the razor has stopped running or you will be injured, then take the head out Step 2: Remove the razor head by pressing down on the clasps on either side Step 3: Then rotate the razor head holder to separate the holder from the razor head Step 4: Finally, remove the old razor head and replace it with a new razor PLEASE: Please check your product type before purchg and contact us if you have any questions?Service?Our products are covered by a 12 month warranty, if there is any damage to the product upon receipt please contact us as soon as possible and we will help you resolve it immediately. ?Notice? Once installed, apply a drop of baby oil to each norelco 5000 Series replacement blade and allow the razor to run for 10 seconds. This will ensure that your razor works properly. ?Package?You will receive 3 x SH50/52 razors, please note that our products are replacement razor heads and not razors. ?Quality?SH50 replacement head blades for Philips Norelco Shaver, with a double precision cut, this replacement head is a high quality and cost effective SH50 replacement head that will remove your beard cleanly and without damage to your skin. ?Compatibility?SH50/52 compatible with Philips Norelco replacement heads compatible with Norelco series 5000(S5xxx) AquaTouch (S5xxx),PowerTouch (PT8xx, PT7xx) series Electric Shaver.For example to AT750, AT751, AT752, AT753,AT811, AT814, AT815, AT830, PT730, PT731, PT732, PT734, S5072, S5073, S5074, S5075, HQ7200, HQ7240, HQ7260, HQ7290 and more not listed.