1,Upgrade Power Tools Accessory:Brushless Motor Replace For 4/6/8 Inch Cordless Electric Chainsaw. 2,Upgrade DIY:You can also convert a brush electric saw into a brushless electric saw,Improve your tool efficiency. 3,Brushless motor: The brushless motor is made of high-strength tempered glass, which is more and has a longer service life. 4,Quality Service:Taking your satisfaction as the first priority, and to provide you with professional after-sales . If you have any questions or concerns, please to contact us. 5,Reminder: According to the suitable model selection, installation requires a certain level of hands-on ability. Colour:As Shown Material:plastic+Metal Package Contents: 1PC Brushless Motor Replace Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.