This is one of those genius and simple inventions that you won’t believe how it is not more popular. You are out on picnic or camping and you need to cut down a small (branch of a) tree but you didn’t bring the saw because who brings those when they go on picnic? Maybe you are older and you need to cut down a small tree in your garden? Use this pocket chainsaw to cut it down! Just wrap it around the small tree and start pulling with your left and then right arm. After you are done you can fold it and enjoy your picnic. Brilliant, isn’t it?