Description Features: Efficient and easy to mount, smooth and quiet stopping power. Make of aluminum Alloys, can used for long terms. It is resistance to heat and oxidation, and is not easily deformed. With great stop capability, you can stop your bikes immediately when running into emergencies. Easy Installation and Adjustment ,Suitable for most of V brake. Brake pad is wear-resistance, the grooves can improve brakings efficacys to make cycling safe. Specifications: Material: Aluminum Alloys Size: As Show In Picture Note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color. Package includes: 1x V Brake Calipers Set