They are approximately 20 feet in length. The rockets are judged on how far they fly when launched, but also on how beautifully decorated they are. Buddhist monks are generally the best rocket makers. The rocket contests today have less to do with religion and agriculture than the old days. It helps bring people together among neighborhoods, civic and military groups. Officials who judge the contest usually watch from a grandstand and give prizes for the most brilliant, the fastest and the highest rockets.