the erasers work great, but if there is a lot of decals you will be there a while. All of them I get are always plastered front to back with enough stickers to make a rice grinder jealous. Take a good hot sunny day, spray on some soapy water & use a razor blade to get a corner up, then peel them off slowly. most of the larger business decals come off pretty easily. you can also buy a plastic razor blade that won't scratch. use 3M adhesive remover for any leftover residue, won't hurt paint. brian