Package contains one foil and cutter shaver head cassette Changing your shaver head cassette is fast and easy To bring back 100% shaving performance, replace your shaver head cassette every 18 months For optimum performance, clean regularly Number on Packaging: 32S/Series 3 Shaver replacement parts - bring back 100% performanceDid you know that a man shaves the area of a football pitch in just 18 months? Braun shavers are very reliable. Nevertheless, the cutting parts the foil and cutting block wear down over time with repeated use. This is hardly surprising, as in 18 months you have already shaved an area the size of a football pitch! As a result, Braun recommends you replace the foil and cutting block every 18 months to ensure your shaver continues to perform at its best. This replacement part is suitable for the following Series 3 model numbers: 390cc, 370. Where can I find the type/model number? For the majority of the Braun products the model name or number is placed well visible on the housing. For some of them the model name/number will only be present on the packaging and instruction manual and not on the product itself. Should this information ever get misplaced, a four digit type number, which is imprinted on all Braun products, can be used to determine the appropriate part(s) for your product. The type or model number can usually be found in the following places on a Braun Shaver: On the back of the shaver, on the shaver housing under the cutterblock or under the long-hair trimmer.