Review on Plastic Razor Blade Scraper: Mini Double Edge Utility Knife Tool with 10PCS Plastic Razor Blades for Easy Label, Sticker, and Decal Removal by Fred Griffin

They'll get the job done, but they're not as good as plastic razors. I bought them mainly because they were cheap and offered fast shipping, but the blades didn't work well. First the tool bends. The blade is so strong that you can't apply pressure to attach the blade, it just bends to the side. I noticed that they also dulled fairly quickly and the cutting ability of the fresh ones isn't very sharp either.