1. Material: Nylon plastic/metal
2. Solid structure, one-piece moulding
3. High hardness, not easy to crack and deformation
4. Sharp edges and corners, long service life
5. Convenient to use, accurate card position, compact size
6. Nylon weight: 20g
7. Metal weight: 95 grams
8. Overall length: 56.8 mm
9. Inner diameter: 12.8x17mm