Package dimensions: 24.4 x 16.2 x 4.1 cm; 400 gramsEFFECTIVE SHARPENERThis electric saw sharpener provides a quick and easy way to sharpen the knife. Press the tip of the sharpener onto a firm surface and you will get a sharp cutting edge in seconds.CUSTOMIZED DESIGNIt is suitable for 14/16/18/20 inch chain saws, the saw chain blade has 1-2 holes and there are has 2 pins on the saw sharpener (one of the pins is removable) for fixing the electric saw blade.GOOD SHRINK PERFORMANCEThe Bottom of the electric saw sharpener is made of high quality stainless steel springs. If the electric saw is inserted into the sharpener, but the size of the electric saw is not large enough to touch the sharpening stone, please press the spring. The spring makes the sharpener suitable for more sizes of chainsaws.CONVENIENT AND QUICKThe sharpener is lightweight, small in size, easy to carry and use at home. exterior, your hands do not have to touch the sharpening stone.HIGH QUALITYThe chainsaw sharpener is made of high quality durable plastic and sharpening stones for ensure your safety and quickly restore the working performance of the chainsaw. It is a good helper to improve work efficiency.