The TurboJav is a youth throwing javelin implement designed for athletics programs for all abilities. They also develop correct throwing technique for many sports like baseball, football, cricket, etc. The TurboJav teaches the basic fundamentals and mechanics associated with any throwing motion. The TurboJav MINI JAVELIN was originally designed to teach beginner javelin throwers the same throwing fundamentals in a safe and fun environment. It is also ideal for the more advanced athlete to use as a training implement to improve their accuracy and technique. Visit us at tompetranoff and download our throwing manual. COLORS MAY BE DIFFERENT FROM IMAGES AS WE SHIP 4-5 DIFFERENT COLORS TO AMAZON, AND WE DO NOT HAVE CONTROL OF WHAT COLOR IS SENT TO CUSTOMERS.