Suitable for 5 series 6 series Cheetah series models: 50-R1000s/50-B1300s/50-R1320s/50-R1300s/ 50-M4000cs/50-M4200cs/50-M7200cc/ 50-W4320cs/50-B7000cc 5018S 5020S 5035s 5049s 5050cs 6075cc 6020s 6040cs 6072cc 6075cc 6090cc 7020s 7025s 7027cs 7071cc 7075cc 7085cc 7089cc. High-Quality Materials: It is made of high-quality materials to achieve continuous, efficient and easy-to-use characteristics. The Best Shaving Effect: In order to get the best shaving effect continuously, we recommend that you change the shaving head every 18 months. Within 18 months, your electric shaver can trim more than 6 million hairs, thereby gradually reducing pruning performance. Special Processing Technology: The replacement head adopts a special processing technology to which more the texture of your shaver. Restore Performance: Changing the head can restore your shaver' s performance and get a better shave effect. By changing the head regularly, the shaver will maintain its best condition for many years. Colour: as shown Material: ABS+metal Package Contents: 2 * Shaving accessories 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.