A:AnswerHello! We're uncertain about the model of your shaver. We recommend you to contact us for further assistance. You can call us at 1-800-243-3050, Monday -Saturday 9am-9pm EST, Sunday 9am-6pm EST. You may also chat with our live agent through the Philips contact page.
A:AnswerOlder ones came with a fold out paper that was easier to see - the side of the razor heads box now has small photos to look at. I have to use my small flashlite to see them clearly, but should help. Have to push down on the set and twist the center 'lock' piece so they will stay in.