[Inner diameter 60mm]
[Inner diameter 70mm]
[Inner diameter 20mm]
[Inner diameter 50mm]
[Inner diameter 30mm]
How to measure the belt size compatible with your device:
1. Wrap a string that does not stretch around the area where the belt is hung on the target device.
2. Mark the points around just with magic or other markings.
3. Measure the length of the marked circumference (circumference length)
4. The circumference is 3.14 in diameter.
5. Please choose a rubber belt with an inner diameter that is smaller than the calculated diameter.
The amount of tension is required depending on the device, so we recommend choosing two or more types of different sizes.