Features: 1.The product is simple, practical, light weight and easy to carry. 2.It's very simple to use, just fix the end of the chain saw. 3.The grindstone is installed inside the product without fear of losing the grindstone. 4.It is very suitable for the lumberjack or carpenter to go out to work, you can polish the chain saw at any time. 5.Frequent grinding can keep the saw sharp and improve woodworking efficient. specification:Feature: The product is simple, practical, light weight and easy to carry. It's very simple to use, just fix the end of the chain saw. The grindstone is installed inside the product without fear of losing the grindstone. It is very suitable for the lumberjack or carpenter to go out to work, you can polish the chain saw at any time. Frequent grinding can keep the saw sharp and improve woodworking efficient. : Shell material: Plastic Product dimension: 22 * 15 * 3.5cm / 8.7 * 5.9 * 1.4in Package list: 1 * Chainsaw grinder Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.