The size, shape, minimum weight, and centre of gravity of the javelin are all defined by IAAF(WA) rules. The javelin must be held at its grip and thrown overhand, over the athlete's shoulder or upper arm. This Javelin is an IAAF(WA) Certified Javelin and meets all professional standards and specifications. Some of the best throwers in the world assisted in helping us produce this javelin. Great for competition or just training, this javelin throw is perfect for your next Track and Field event. Ace your next Track and Field Javelin throwing event with the our Professional Javelin Throw in the perfect size and shape. Made in association with some of the best professionals from the industry, this Javelin is sturdy and one of our top seller!