1.Toughness is very strong, pull constantly, break constantly, knock is not broken, not bad step, we use polycarbonate as the main raw material. Our usual glasses, bullet proof glass, goggles, Bank of bullet proof glass, headlights, etc. are made of this material.
2.Between the friction coefficient to be much smaller. Very good to protect the role of the kettle.
3.Good elasticity: because the material elasticity is very good, so the size of the kettle is not very high, the general size of the kettle can easily use.

• Not satisfied with 30 days free refund
• Material: PC Plastic
• Holder Diameter: Approx. 2.7 inch / 7cm Total Length: Approx. 5.8 inch / 15cm
• Screw adjusting knob
• Easily attach to any bike frame that has predrilled holes, if your bike no holes, you can go to repair shop to drill holes

Not satisfied with 30 days free refundTTKB.HH