I ordered these replacement heads and they matched the ad and worked as expected. So if I need new replacement heads, I'll order them again. What I received was a different color but I figured they would work the same so I put them on a shelf in the workshop until I needed them. They were issued a week ago, they are terrible. The brush head is attached to a metal ring and falls out with each use. I figured it might just be a broken brush head so I got another one to try which is made exactly the same and also falls apart with use. I didn't spend much and the return window is already closed, but it's very frustrating when they've either changed the way these tips are made or sent a replacement that wasn't as good as their original product. Look for other replacement parts because you don't know what you're getting when you buy them and the level of frustration you get from using them isn't worth the few bucks you could save.