1. Suitable for 3 series :310,330, 340, 199, 197s-1, 195s-1, 199s-1, 4735, 4736, 4737, 4745, 4775, 4835, 4845, 4875, 4876, 5713, 5714, 5491, 5492, 5493, 5494, 5743, 5745, 5742, 7475, 7493, 7497, 7504, 7505, 7510, 7511, 7514, 7515, 7516, 7520, 7526, 7540, 7546, 7564,7570, 7630, 7640, 7650, 7664, 7680, 7690, 7763, 7765, 7783, 7785, 7790 2. High-Quality Materials: It is made of high-quality materials to achieve continuous, efficient and easy-to-use characteristics. 3. The Best Shaving Effect: In order to the best shaving effect continuously, we recommend that you change the shaving head 18 months. Within 18 months, your electric can trim more than 6 hairs, thereby gradually reducing pruning performance. 4. Processing Technology: The replacement head adopts a processing technology to which more the texture of your . 5. Performance: Changing the head can your 's performance and a better shave effect. By changing the head regularly, the will maintain best condition for many years. Type: replacement accessories color:As shown Material:Plastic + Metal Package Contents: 1 x Omentum 1 x clean brush Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.