Feature(may vary by option.)

●Durable Material: Excellent aluminum alloy, surface oxidation treatment, durable, excellent workmanship, high transmission accuracy, closed timing belt is made of strong fiber reinforced rubber, durable and resilient, long life and unparalleled experience
●ACCURATE AND SECURE: Provides accurate transmission. No slippage during work and consistent transmission ratio
●Perfect for DIY: smooth transmission, precise pitch, high transmission efficiency, good energy saving. Many DIY enthusiasts are full of admiration and are also your best choice
●SIMPLE CONSTRUCTION: Easy to install and disassemble with wrench, make your 3D printer work more easy and convenient
●Wide application: widely used as stepper motor pulley kit, 3D printer, milling machine, gear grinding machine, drill machine, CNC lathe, gear hob machine, or other mechanical transmission occasions

[5mm & 0.2 Bore]

[8mm & 0.31 Bore]

[20t 5mm (0.2in) Plus 60t 8mm (0.31in)]

Description

Specifications:
Item Type: Synchro Wheels
Material: Aluminum Alloy, Rubber
Timing Belt: Length: Approx. 200mm/7.87"; Width: approx. 6mm/0.24in
Teeth: 20T and 60T
Screw: M4

Package List:
4 x Synchronous Wheels
2 x Belts
1 x Hex Wrench