Specification: Motor type:Brushless Saw Type:chain saw Material:high-strength tempered glass,Plastic Quantity:1PC Size:6.2*5.2cm/2.44*2.05in Package includes: 1PC Brushless Motor Replace Features: 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 durable and has a longer service life. 4,Quality Service:Taking your satisfaction as the first priority, and guarantee to provide you with professional after-sales services. If you have any questions or concerns, please feel free to contact us. 5,Reminder: According to the suitable model selection, installation requires a certain level of hands-on ability.