Machined 13g pure tungsten framework weight. The weights are smaller compared to the metal weights as they are better to install with a cleaner layout. The super little loads cause lower CG comparing to standard loads. Made out of really uncommon and hefty pure tungsten product, maybe not a normal tungsten combination. The pure tungsten gets the highest density framework and it is the heaviest steel material which allows to develop tiniest size weights comparing to virtually any other materials. Quick & effortless accessory to chassis. Marked with fat value for easy recognition.