This Coin sorter works by sorting out coins by sizes. Smallest to largest, largest at the bottom. The measurements are exactly right and set to fit american dimes, pennies, nickels, and quarters. The size of the coin filter can easily be changed to fit other currencies however.
The bottom of the coin containers can be removed to allow coins to fall directly into a cash box or other container. This is basically the same concept that actual coin sorters at banks use when counting change.