High Quality: Metal blade nut is made of high quality materials, which is strong and durable, and has a long service life. Universal Fixing Kit: 1 protective cover, 1 blade plate, 1 blade and 1 M10 threaded nut, 1 inner hexagon. Easy to Install: Use this installation kit to connect the lawnmower blade to the rotary head. Easy to Use: Convenient and easy to use, stable and reliable, it is a good replacement kit. Wide Range of Applications: The universal blade nut fixing kit is suitable for most lawn mowers, brush cutters and paper shredders. Please note that due to manual measurements and display differences, it may there may be slight differences between the individual products and the photos.