It slowly unscrews as you use it. Nothing amazing, it does the job normally. But I can't give it 5/5

I ordered a pair and both came out defective, nothing terrible! I have 28mm discs, on one side it fit comfortably, on the other side it only went halfway (this happened with both dumbbells exactly at the same point). I measured 28mm on one side and 28.5mm on the other, so I had to adjust it a bit! Of course, now everything is fine and it does its job! I don't consider it a big problem, but it's a shame!

Sturdy, I put 10 kilos on each side and I have no problem. I tighten them between some sets. The weights do not unscrew easily, but after some strong sets with rotational movements, they will come loose, like most dumbbells.

Very nice and easy to use. I have worked with a total weight of 20+ kilograms and never felt like something would come off or that it is unstable (which happened with an x-fit barbell with collars when I added 1.25kg!!!!!!!!). I don't believe there is anything better, about 8cm of space for plates on each side.

They work fine, it hasn't had any issues since I bought it. Maybe after a few repetitions, you might need to tighten the screws again

Good grip but the safeties unscrew quite easily no matter how tight you tighten them. Nevertheless, it sits very nicely in the hand.

For 8.5 euros, it's the best. The only thing I want to add is that it is 1.5 kilograms and not 2 as the description says. The other features are correct.