Overview and Specifications:
The special torsion spring is used to adjust the tightness of the belt.
It is suitable for 6mm synchronous belt
Outer diameter: about 5mm/0.19''
Inside diameter: about 4mm/0.15''
Line diameter: About 1.0mm/0.03''
Please allow 1-3 cm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding