Klawiatura and other 85,000 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px. Icons are availble for download in PNG and vector (SVG, PDF, EPS, and more).
It is a series of ten rectangles drawn separately from one another. They are arranged in the same pattern as a cellular phone keypad, with only the number buttons displayed. It is a three by three pattern, with one button underneath the pattern and centered.