QuickFix+ Professional Series Battery Operated Eraser, Cordless Electric Auto Eraser for Artist Drawing, Sketching, Drafting- Set Includes 40 Eraser Refills, Battery Operated - Black

Good for general use in certain projects. Illustrators and draftspersons should consider getting a non-battery powered device because the battery life is only good for about 3-5 days with regular use.

I was unable to open to put my batteries in , so I returned it

Great for erasing mistakes on colored pencil projects, but you do have to be careful about overdoing on spots.

The access to put batteries in was glued shut. No way to get them in.