Quick overview from the supplier:
Shaver ACC Philips SH50/50
Fits product types:
5000 series Shaver (S5xxx) China manufacturer)
AquaTouch (S5xxx)
PowerTouch (PT8xx, PT7xx)
AquaTouch (AT8xx, AT7xx)
6000 series Shaver (S6xxx) China manufacturer)
Shaving heads per pack: 3
