1. Material: aluminum alloy
2. Features: durable, easy to install
3. Aluminum alloy material, strong and durable
4. Oxidation process, high toughness, not easy to deform
5. The cover has a water-proof rubber ring to prevent the bills and documents from getting wet
6. Product size: 13 x 4.3 x 2.7 cm
7. Product weight: 41 grams / piece
8. Note: Only metal tubes will be shipped, nothing else!