With javi tungsten bodies you can make very small but at the same time very heavy artificial flies. Their elongated shape distributes the weight over the entire length of the hook, so you can make very heavy imitations without distorting too much the size of the head. The javi tungsten bodies weigh up to 2/3 times as much as a classic tungsten bead of the same diameter, which allows you to reach the bottom even in strong current situations, presenting the fish with much more credible imitations.