1.Suitable for 40B:CT2S CT4S CT2CC CT4CC CT5CC CT6CC 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 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. 4,Special Processing Technology: The replacement head adopts a special processing technology to which more the texture of your shaver. 5,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. Material: plastic + metal Color as shown Package Contents: 2 x cutter head 1 x Cleaning 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.