Here we have three new Pentel ZE-80 erasers. Very close to the round ZE-21 or ZE-22 eraser and the tri eraser ZE-15 but these ZE-80s have a square eraser. It was just a matter of time before Pentel had these clic erasers in all shapes for all needs. Same operation as all the other Pentel Clic erasers. Nice colors. Add them all to your eraser collection.