Machined 13g pure tungsten framework weight. The lots are smaller compared to the metal lots since they will be more straightforward to install with a cleaner design. The super small lots result paid off CG comparing to standard loads. Made from in fact uncommon and hefty pure tungsten product, maybe not an ordinary tungsten combination. The pure tungsten gets top thickness framework and it's also the heaviest steel product allowing to create tiniest size weights comparing to just about any other materials. Fast & effortless accessory to framework. Marked with fat value for simple recognition.