1. This chain sharpener for the [Dull Chainsaw] is made of high-quality alloy, which is wear-resistant and durable. It is designed to quickly, easily and accurately sharpen your chainsaw. 2. [Fast Sharpening] When starting a project, you don't need to stop for a long time to repair things. The chainsaw tooth sharpener can clean the dull chain in 3 - 5 seconds. Using the sharpening tool can make your chainsaw as sharp as new, saving you time and energy. 3. [Portable] This is a good compact sharpener, which is very suitable for situations where there is no space for a larger sharpener or an electric sharpener. This sharpener only weighs two pounds and is small and portable. 4. [Compatible with Most Chainsaws] This sharpener is not only suitable for all types of chainsaws, but also can keep your chainsaw in good condition with a stylish design. 5. [Easy to Use] Find the dull teeth and turn the handle to start sharpening. Precise sharpening can ensure that each tooth is sharpened. If you have any questions about the product, please contact us.