Features: Make from aluminum alloy, ensures sensitive and stable brake performances, suitable for most bicycles types. Reducing complexity and elevating comfort for a smooth, controlled cycling experience. Experience wonderful braking with our bikes brake integrator, a great designs to simplifying your cycling setups and maintenance. Great for cycling enthusiasts who value enhances braking efficiency and convenience. Applicable brake model: suitable for M4100 M6100 M7100 M8100 9100 9120. Specifications: Materials: Aluminum alloy Style: single right/single left/left and right 1 pair Size: about 3.3x2.6cm/1.30x1.02inch Package Includes: 1pc/1pair Bike Brake Shifter 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.