Review on Red Devil 3318 Plastic Sandpaper by James Nedumaran

I bought one of these in the 70's and have been looking for another for the past 20 years. My old one is finally showing signs of wear. Here are the features I like: 1. Lightweight.2. Easy to replace or change the sandpaper.3. It uses plain old sheets of sandpaper that can easily be torn into quarters. Very little waste.4. Supple foam paper backing - lasts a long time.