A. This bicycle screw-type freewheel socket is a practical tool specially designed for mountain bikes. It belongs to the category of wrenches and is made of relatively good steel, being sturdy and durable. It can withstand a certain amount of external force and is not easily damaged, ensuring it won't deform during use, allowing you to use it with more peace of mind. B. Its unique design feature is that its size is lengthened. This lengthened design makes it more convenient to install and remove the small freewheel of mountain bikes. It can easily reach some hard-to-reach areas, providing you with more operating space and greatly improving work efficiency. Whether you are a professional bicycle repairer or a cycling enthusiast who likes to maintain your own bike, this lengthened freewheel socket can be a reliable tool for you. C. In terms of aesthetics, it has a simple and elegant appearance design with smooth lines, showing a delicate industrial beauty. It is not only a practical tool but also an item with an artistic sense. It will be a unique sight when placed on the tool rack. D. With its decent materials and careful design, this bicycle screw-type freewheel socket can meet your needs for installing and removing the small freewheel of mountain bikes. It is a practical good that you shouldn't miss.