Features： 1、Scope of Application: 410 16 tooth freewheel 38 link chain 9 tooth sprocket set is suitable for 1025 1016 1018 Z2 Z3 reduction motor. 2、Steel Material: 16 tooth freewheel 38 link chain 9 tooth sprocket set is made of metal steel materials to provide maximum power transmission and long life. 3、Forging Process: 6 tooth freewheel 38 link chain 9 tooth sprocket set adopts forging process, which is non corrosive and non deformed. 4、Good Workmanship: Exquisite workmanship, beautiful appearance, small and portable size, providing you great using experience. 5、 Fit: Closely fit the original hole position with accurate shape and size design, having less stuck situations during use. Specification： Item Type: 410 16 Tooth Freewheel 38 Link Chain 9 Tooth Sprocket Set Product Material: Steel Color: As Pictures Shown Weight: Approx. 340g / 12.0oz Package List： 1 x Connector 1 x Flywheel 1 x Sprocket 1 x Chain