Sure, you can also do so pushups. But with these attacks, it's more fun, it's especially healthy for the wrists (especially if you often trained pushups) and the training can be designed more intense (greater range of motion, Instbilität through the pivot bearing, use of other / other muscles). The handles are also suitable for beginners who train for example, on their knees.
Great exercise for advanced users: With the Füßenauf an exercise ball, or even only on one foot ... :-)
I have the parts here for nearly 30, - get. Currently it probably unavailable. 70 to 90 euros, I find, however, too much.
Buy recommendation for people who want to often like to make Lieg support and protect her wrists!
PS: A further development would be a good abschrägbarer handle, one of the join in the "Winkbewegung" of the wrist, but is also detectable in different positions.