Specification Brand : Gashwer BulletPoint1 : This 9" x 20T Carbon Steel Round Chainsaw Tooth Brush Blades & 10" X3 (Upgrade 3.0 thickness) TEETH CARBON STEEL BRUSH CUTTER BLADES has a 1-inch(25.4mm) hole in the center, which is suitable for most straight shaft gas trimmer with 1 inch(25.4mm) gear case. There are two different adapters that can be used for more models of lawn mowers. BulletPoint2 : The brush cutter kit and Universal Fit Adapter for brands - Husqvarna/ Stihl/Ego/ Oregon/ Hitachi – They are also Compatible with other brands including Coocher Brush Trimmers, Dewalt Brush Trimmers, and as a Compatible with Forester brush blades.The weed eater blades metal is made of manganese steel, and the insert has high hardness and long service life. Trimmer head suitable for cutting branches, brush and shrubs. BulletPoint3 : Please don't let the blade hit stone and other solid objects, the blade will be blunt or even damaged. The weed trimmer head is very easy to install, Just need to connect weed trimmer head to the shaft punch of the mower, it can be quickly and easily assembled and disassembled.(Please follow the fourth picture to install) BulletPoint4 : Two Pack Different Adapter Kits: Blade adapter attachment maintenance washer First kit contains 1 x Thrust Washer/ 1 x Rider Plate/ 2 x different size Collar Nut/ 1 x Screwdriver/ 2pc x L-Wrench/ 1pc x T-Wrench/ 2pc x washer. The Second Kit: 1 x Thrust plate guard washer / 1 x Thrust washer/ 1 x Rider plate/ 1 x Lock nut/2 x washer/1 x glove. BulletPoint5 : One year warranty, BE CAREFUL--- Highly recommend you wear boots or at least ankle-high shoes and jeans. The pieces of trees and rocks may bounce off of your leg. Safety glasses or goggles are necessary.If there is any problem with this Blade Set, please contact customer service in time, and you will get a satisfactory result. Color : Black ExternallyAssignedProductIdentifier1 : 635508508606 ExternallyAssignedProductIdentifier2 : 0635508508606 FuelType : Gasoline IsAssemblyRequired : 1 ItemName : 9" x 20 Teeth Brush Blades Carbon Steel Round Chainsaw 10" x 3T Cutter Weed Eater Blades- Universal Adapter Kit with 3 Round Files, Compatible with Brush Cutter Trimmer Weed Eater Husqvarna Stihl Ego ItemPackageDimensions_Height : 27.1018 centimeters ItemPackageDimensions_Length : 4.5974 centimeters ItemPackageDimensions_Width : 27.0002 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : string-trimmer-replacement-parts ItemTypeName : Carbon Steel Brush Cutter Weed Eater Blades Manufacturer : Gashwer ModelName : Carbon Steel Brush Cutter Weed Eater Blades ModelNumber : Carbon Steel Round Chainsaw Brush Blades NumberOfBoxes : 1 PartNumber : Carbon Steel Round Chainsaw Brush Blades PowerSourceType : ac_dc ProductDescription : Gashwer Upgrade Thicken 10" x 3 Teeth Carbon Steel Brush Cutter Weed Eater Blades for 20mm or 25.4mm Arbor, Compatible with Husqvarna, Stihl, Ego, and More, with 2 Different Adapter Kits Gashwer 9" x 20T Carbon Steel Round Chainsaw Tooth Brush Blades - Universal Adapter Kit with 3 Round Files, Compatible with Brush Cutter, Trimmer, Weed Eater, Husqvarna, Stihl, Ego ProductGrade : Replacement Part ProductSiteLaunchDate : 2020-05-19T07:00:00.000Z Size : 2set 9"x20T+10"x3T SupplierDeclaredDgHzRegulation : not_applicable