The 800g Turbojav weights 800 grams just like the real men's Javelin and is 72” long. This TurboJavelin is a great training tool for women to use as a heavy implement that creates the feeling of their 600g feeling a lot lighter when they throw. Men use this as a training tool to learn to throw through the point and not around their center of gravity. This TurboJavelin will correct their wrong doings by not flying far when they throw incorrect. The TurboJavelin will wobble if the athlete cannot throw through the point or if they throw with a misdirection of power. It is a great corrective tool.