There are 2 black sets, 2 dark blue sets, 1 white set, 1 transparent orange set, 1 transparent blue set, 1 yellow set, 1 metallic red set, 1 metallic blue set, 1 metallic silver set.

Therefore in total 11 sets of buttons.

I believe only the yellow and transparent blue set do not have their silicone pads.

Mostly unused.