Gigantic eraser collection

An eraser collector with over 2,000 erasers in his collection lovingly documents his rubbery pals on this page:

To prevent the erasers from hardening, I soak them in warm water mixed with dish washing detergent (once a year). Then I towel dry them and soak them in Armor-All and towel dry them again. This product is normally used to keep tires and dashboards from dry rotting in the sun but it's excellent for erasers too!

Link (Thanks, Matt!)