Get back performance on your shaver for a fraction of the cost. Easily replace your shaver parts every 18 months to maintain good performance. Small investment, good performance. How to Replace Your Shaver Head:For older models which have a foil and a cutter block as two parts you need to change the parts in two steps: First remove the foil, either by pressing the release button if your shaver has one, or by pulling the foil. Next rotate the cutter block by 90 degrees and pull it off, holding it at the ends to avoid Pressing the blades. To fit parts, simply carry out the same procedure in reverse. Specification: Type: Series 7 Replacement Foil and Trimmer Cassette Head Model: 70s Compatible Model: Compatible with old and Series 7 (799cc, 795cc, 790cc-4, 760cc, 750cc, 735s, 730) and for Pulsonic colour: silver Material: ABS+ metal Package Contents: 10 x Shaving Head Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.