In the foam roller package, you will find the roller handle with 3 foam rollers. Each one will last a long time.
Use for paint or ink application on the IOD stamps. Or you can use these to paint flat surfaces of furniture.
Here's a tip: place the dirty rollers into a sealable ziplock bag and store them in the refrigerator. That way you don't have to wash them and they will be ready for the next usage.