A javelin is a long, slender spear designed for throwing. It is typically made of lightweight materials like aluminum or carbon fiber, allowing athletes to achieve greater distances. Javelins are used in the sport of track and field, where competitors aim to throw them as far as possible. In Olympic competitions, javelin throwers use a specific technique to maximize their throw distance, involving a running start and a powerful release. The event is categorized by weight, with men's javelins weighing about 800 grams and women's javelins weighing 600 grams. Proper training and technique are essential for success in this sport.