fresh and high qualityOOTDTY Features:3.17/4/5/6/8mm Motor Shaft Coupler Sleeve Coupling Chuck Adapter.Flexibility of coupling shaft gets rid of pressure between the motor and using components.It can for play a role within the unexpected.Great helper in your productivity.Specifications:Material: SteelColor: Black/SilverMatch Inner Hole: 6mm (M6)Match The Motor shaft Diameter: 3.17mm,4mm,5mm,6mm,8mm.(Pls prefer one type)Quantity: 1 SetNote:Please allow 0-3mm error thanks to guide measurement. pls ensure you do not mind earlier than you bid.Due to the variation between diverse monitors, the picture might not replicate the particular coloration of the item. Thank you!Package Contents:1 Set of Motor Shaft Coupling (without retail package)