Slider
Also called: Range slider, Seek bar
A control where you drag a thumb along a track to choose a value or a range between a minimum and maximum.
Definition
Sliders suit approximate values like volume or a price range, not exact ones like age. Testers check min and max are reachable, rounding, keyboard support and what screen readers announce.
In practice
A price filter from €0 to €250 should actually reach €250, not stop at €240.