Calculate the head weight and balance point of your Tennis Rackets and save on your phone for quick reference! Just input the length and the balance point to calculate the true head weight. Manufacturer claims to the balance point and head weight of your tennis racquet can be inaccurate. Alterations such as new grip, strings, etc. can also drastically change your head weight. This app will give you the true statistics of your racquet, so you can play better!