Compatibility: This Upgraded 3d printer accessories is the replacement part for Ender 3, Ender 3 Pro, Ender 3 V2, Ender 3 Max, Ender 5, Ender 5 Plus, Ender 5 Pro, CR-10, CR-10 V2, CR-10 Max, CR-10 S4, CR 10, CR-10 S5, CR-10 Mini, CR-10S, CR-10 Plus, CR-X, CR 20, CR 20 Pro. It is also compatible with other 3D printers except for the printers with a direct drive setup. No need to change stepper motors or other mounting hardware.Designed for Longlast Use: All accessories are made of premium aluminum,rust resistance, fine finishing, high precision process,perfectly fit. Little new accessories makes your 3D printer a longer service life.Using Tips: Fits 1.75mm filament. 40 Teeth drive gear compatible with PLA/ABS/Wood/TPU/PTEG.Perform Better: It makes loading the filament easier and smoother, no worries about filament scraping or breaking.Simple Operation: Coming with a detailed instruction of installation and steps,making the work easier.