The handlebars are very well dimensioned on the length and let all the exercises too comfortable. And with additional disks can be the dumbbells upgrade also for ambitious people.
The handlebar itself and also the star closure are provided with a rubber ring. Closes to the star closure reasonable, this does not open automatically due to the rubber rings.
I myself train itself 3-4 times a week at the gym and sometimes at home, even with relatively high weights. I can recommend the dumbbells fully and it must have been for this manufacturer not the last, I'm going to order me.