I bought one of your brushes and I LOVE IT! The product number is 875081001044. I think I bought it at a Home Depot. I am not a professional painter by any means, but I haven't painted a lot over the years. I always use tape because I just can't seem to cut in without making mess, that is until I bought your brush. I was able to cut in next to the ceiling with no problem at all. Like most manufacturers I am sure you get your fair share of complaints, so I wanted to give you a big thumbs up. I will have to give some of your other brushes a try. Thanks for making such a useful product.