1. Material: plastic 2. It is suitable for Japanese brush heads with 31/35/36/39mm outer diameter, and can be converted into European brush heads with 32mm inner diameter 3. Easy to install and easy to use 4. Real machine mold opening, high adaptability 5. Wear-resistant and durable, not easy to damage 6. Inner diameter of straight tube: 31/35/36/39mm 7. Function: transfer function 8. Size: 39x95mm
