How to sew rubber and plain waist band

This tutorial is the best for sewing rubber and plain waist band combination. Not too difficult if you are usual to sewing. It’s all about hand coordination. I think, measuring and deciding how long is the rubber band needed is ‘more’ difficult than sewing it. Not because it’s rubber band, the fitting is guaranteed. If we wrong in measuring it, it can be useless as well as too tight.