ReFaXi&Acirc; 1set V Brake Noodles Cable Guide Boots Mountain Road Bicycle Bike Front Rear Set 100% brand new and high quality Material: Metal + Plastic Cable guide length: Approx. 3.23inch/ 82mm Plastic boot length: Approx. 2.05inch/52mm Plastic boot diameter: Approx. 0.27inch/6.74mm Suitable for folding bicycle, mountain bike front and rear brakes After installing, it can ride smoothly when turning aound and improve braking deceleration