Abstract

The aims to this research is to desain the multifungtion the ball that can fulfill the needs of basketball,  volleyball and football games, The methodes are; 1)  neds analysis, 2) Designing the initial product, 3) initial product; 4) Validation of expert by using experts; 5) Revision of the first products is done for the improvement of expert evaluation results; 6) Small scale test trials; 7) Revision of the second product; 8) large-scale trials; 9) Revision of the final product; 10) Deployment and implementation of results. Samples of small-scale trials use 36 elementary and junior high students, and for large-scale trials use 72 students of Elementary and Junior High Schools in Semarang City. The results of the final product are a multifunctional ball for basketball, volleyball and football with a size of 66 cm, made from sponge material PU (Poly Urhetane), a smooth non-slippery, weight of 270 grams, 0.250-0.3 bar of air pressure and has reflections of 105-115. Ball design describes characteristic of three ball, there are basketball, volleyball and football with bright and interesting colors. Conclusions in this study are a multifunctional ball with the correct specification as in the research results above, has a multifunction for basketball, volleyball and football for Elementary and Junior High School students, does not cause pain because they are light and proper size for Elementary and Secondary School students.