This is a great power exercise. It helps many aspects of the handstand. One of the most important is the engagement of core and arms at the same time. If you are looking to improve your press handstand, include this in your routine. For beginners, it might be challenging to press up, but the exercise to control the way down is very important. One way to save yourself when falling from a handstand is to roll. You simply press your chin against your chest bend your arms and roll front. Now if your arms are not so strong, you might hit your back against the ground. This exercise helps to make the rolls smoother. It very important for all kind of transitions.