Negative points from a screwed bar across the door frame:
_ It is a little low, you have to bend your legs. Arms straight and bent legs, my knees flush with the ground. But hey it's a matter of habit.
_ The bars have a diameter slightly smaller and are painted metal, which tends to slip a little. Take sports gloves?
I am very happy with my purchase and I recommend him for his cunning, his practical and aesthetic side (when your partner does not want bar through doors in the apartment ...).
It filled his role well and even better, it allows me to do push-ups with hands wider apart to raise the bar behind the head. What is impossible with conventional bars across the doors, because of the narrowness.