TRIAL PREPARATION Preparation is key for any child considering becoming an Australian Open or AOS Ballkid. As a result, we have a diverse range of resources available to assist children in the development of the skills and abilities required to be Ballkid. These resources include; Online training videos Detailed instructions manual for each core skill and ability TRIAL PREPARATION RESOURCES For more information to help you preparation for the Level 1 Selection Trials, click here. For more information to help your preparation for the Level 2 Selection Trials, click here. To access our online library of training resources, click here.