Item Name: GT2 Pulley for 9mm Belt Specification: 5mm Bore, 20T Idler Pulley and Sync Pulley for 9mm timing belt Material: Aluminum Alloy, Steering Steel Measurement System: Metric PCs in Item: 1 PC Manufacturer: N/A, Made in China Notes: The pulley can be used for 9mm 2GT belt only.
