1. Material: PC+aluminum tube+nylon wool 2. Suitable for beginners, manicurists, shop owners, training colleges 3. Metal pen ring, vacuum pressing at the interface effectively prevents the pen bristles from falling off 4. High-quality nylon bristles, the bristles draw smoothly and are durable 5. Pen barrel UV electroplating paint surface, long service life 6. Weight: about 14g/29g/33g/39g 7. Size: The overall length of the pen barrel is 150 mm