Well they look like they've been formed by origami...a most unusual button.
Imagine them on a white shirt...transform H&M into Prada..
A soft creamy white rather than a bright white.
I have them in either
1.5cm - 6 loose
1.5cm - 5 loose
1.8cm - 6 on a display card
2.7cm - 4 on a display card