Description: 【Essential Bicycle Maintenance Tool】: This hydraulic caliper tool is specifically designed for compressing pistons when replacing brake calipers, making it an indispensable accessory for cyclists 【Material】: Crafted from aluminum alloy, this piston press tool is wear resistant and sturdy, ensuring it remains in condition even after prolonged use 【User Friendly Design】: Simplify your bicycle maintenance tasks with ease. This Brake Caliper allows you to efficiently replace pistons in bicycle brake calipers, enhancing your maintenance experience 【Compact and Portable】: With its lightweight and compact design, this hydraulic disc brake caliper piston wrench is easy to carry and store, saving space while being a gift for cycling enthusiasts and professionals alike 【Versatile application】: Perfectly suited for various scenarios such as cycling adventures, bicycle repairs, and modifications, this bicycle maintenance accessory is a versatile addition to any toolkit Specification: Material: Aluminum Size Chart: 15cmx2.58cmx1cm/5.91inchx1.02inchx0.39inch Package Includes: 1 Bike Disc Brake Tool Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.