Product Name: M5 Aluminum Spacer for Openbuilds Model NO.: C095 Application: Ox CNC Workbee Transport Package: Carton Origin: China HS Code: 8504409999 Product Description High Precision M5 Aluminum Spacer Round Aluminum Spacer For Openbuilds"We use one length of these versatile spacers to create a space between the Stepper Motor and the Motor Mounting Plate. This allows for room to mount hardware such as Flexible Couplings and Timing Pulleys to the motor shaft."Product DetailsQty. 100pcs/lotM5 IDVarious Lengths for your choice ( 3mm/1/8''mm/6mm/1/4''mm/9mm/13.2mm/20mm/35mm/40mm)OD 10mmAluminumColor: Silver