How do I adjust the nose pads on my smartglasses?

There are different sizes of rubber nose pads included for each of the smartglasses:

For the smartglasses in size M, a total of 5 different rubber nose pads in different sizes are included in the delivery specification.
For the smartglasses in size L, a total of 4 different rubber nose pads in different sizes are included in the delivery specification.

Markings (lines or dots) are attached to the rubber nose pads to identify the different sizes. The markings indicate the height:

Here you can see how the nose pads can be replaced:

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How do I adjust the rubber nose pads on my ConnectedRide Smartglasses?