It is recommended that you replace your shaving head once every 12 months for maximum shaving performance Compatible with Philips Norelco ALL S5000 series models S5010, S5011, S5013, S5015, S5050, S5070, S5010, S5011, S5013, S5015, S5050, S5070, S5074, S5075, S5077, S5078, S5079, S5080, S5082, S5085, S5090, S5100, S5110, S5130, S5140, S5150, S5205, S5210, S5211, S5213, S5230, S5231, S5251, S5252, S5270, S5271, S5272, S5273, S5290, S5310, S5320, S5330 ✪S5335, S5340, S5355, S5360, S5370, S5380, S5390, S5391, S5395, S5396, S5400, S5420, S5510, S5520, S5560, S5570,, S5075, S5077, S5078, S5079, S5080, S5082, S5085, S5090, S5100, S5110, S5130, S5140, S5150, S5205, S5210, S5211, S5213, S5230, S5231, S5251, S5252, S5270, S5271, S5272, S5273, S5290, S5310, S5320, S5330 ✪S5335, S5340, S5355, S5360, S5370, S5380, S5390, S5391, S5395, S5396, S5400, S5420, S5510, S5520, S5560, S5570, S5571, S5572, S5590, S5600, S5610, S5620, S5640, S5650, S5660, S5675, SW6700 Compatible with Philips Norelco ALL S6000 series models S6011 S6015 S6100 S6400 S6550 S6580 S6610 S6620 S6630 S6640 S6670 S6680 S6800 S6810 S6880 Please Note: This is an aftermarket Compatible Replacement shaver head by ZOOJR, it is high quality aftermarket replacement part. It is 100% functional, but can not reach the same performance.