Gobike Multi-Function Bike Bicycle Cycling Mechanic Repair Tool Kit (Black)

Stupendous tool for someone who goes by bike! There have been several cases when I drove a bicycle and the chain opened up from nowhere, and this tool would have made a huge difference in the speed with which I returned to the road. There is a learning curve if you do not know how to maintain your bike, but it is very easy to use. It looks very durable and robust, it should last a long time. It's small and compact, making it even easier to take your bike outings with you. Do not leave it at home just in case!