Get 100% of your shaver's performance back at a fraction of the cost. Easily replace shaver parts every 18 months to maintain good performance. Small investment, good performance. How to replace the shaver head: For older models that have the foil and cutting block as two independent parts, please Replace parts in two steps: first remove the foil, either by pressing the release button if your shaver has one, or by pulling the foil. Then rotate the knife block 90 degrees and pull it out, holding it at the ends to avoid putting pressure on the blades. To fit the new parts, simply follow the same procedure in reverse order. Specification: Type: Series 7 Replacement Foil and Trimmer Cartridge Head Model: 70s Compatible Model: Compatible with Old and New Generation Series 7 (799cc, 795cc, 790cc-4, 760cc, 750cc, 735s, 730) and for Pulsonic Color: Silver Material: ABS + Metal Package Contents: 4 x Shaving Head Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from actual. The measurement error is +/- 1-3cm.