Machined 12g pure tungsten chassis fat. The weights are smaller than the brass loads and they are more straightforward to install with a cleaner layout. The super little loads end in lower CG comparing to standard loads. Produced from extremely unusual and heavy pure tungsten material, not an average tungsten mixture. The pure tungsten has got the highest thickness framework and it is the heaviest metal material which allows to design littlest size weights comparing to any other materials. Quick & effortless attachment to chassis. Marked with fat value for effortless recognition. Fits T4'20 & T4'21 Dimensions: 34mm x 17.5mm x 1mm