How to change the Master Disposal Rubber Bands / Belts on RISO RP

Rubber band

This a common problem on RISO RP3100, the rubber band that allows the master to be removed breaks because of the deterioration of the rubber. 
I found an old explanation from PrntNow

If you want to find the real belt for replacing it, you can buy it on aliexpress but it will cost 10-20 € for 8 and take a month to deliver.
Instead, I just bought a pack of classic rubber band, and decided to use the 30 and 75mm to replace the small and larger belt.

It works perfectly fine !

Steps

Broken rubber band
Tutorial
Cheap rubber band
Take care of not twisting the rubber bands