1. TC4 titanium alloy material, durable and not easy to rust 2. Easy to press, easy to use 3. Good elasticity, light and portable, wide applicability 4. Material: TC4 titanium alloy 5. Hole size of perforation: 14 x 10mm 6. Weight: about 7.5g 7. Size: about 4.5 x 1.8cm
