I just tried it and realized that it is suitable for all types of building materials, meaning it automatically adjusts to the building material and provides great holding power. I noticed that it causes expansion in hollow bricks and creates knots in plasterboards. I also tried it with a metric threaded bolt and it works perfectly. It doesn't miss the mark and saves you time. I think it is the best plug on the market.

Every year I use the white ones with the 3 holes and I am very satisfied. The black ones are for throwing, I never use them. I decided to try these ones here because they told me they are top-notch. They are good, I won't deny it, but I don't think they are worth the money. I will probably continue with the white ones because they are 4 times cheaper and, as I said, I haven't had any problems so far

They are really worth their money. As soon as I tried some, I realized that I was wasting my money on regular oopats until today. Not a single one missed and their anchoring is significantly better compared to a conventional oopat, both in brick and concrete.