One of the best Granular Selection methods ever implemented; as a modal, to be exact. Let me walk you through: The Grid Pattern: For numbers 1–19, I tested and understood that a grid is much faster than a scroll wheel or a simple +/- counter if the user wants a large number. But I also included a keyboard support: The "Input number here" field acts as a fail-safe for accessibility or very large groups, though the primary interaction is the tap-grid.