Not only are these great for holding calipers out of the way and preventing damage to brake hoses, you will find many other undercar and under hood uses to make you work faster. Having this job specific tool is much easier, safer, faster and more professional than having to use old coat hangers, zip ties bungee cords or mechanics wire. You get 8 hooks, this way you can service All 4 wheels at the same time and even on 2 cars.