The Ton Machine GW 80% by WINMAU is a dart set with barrels of 80% Tungsten and is the ultimate dart set with a correct price-quality ratio. Darts from the brand Winmau. Original, streamlined darts with a classic ring grip that has remained popular and has been used by professional players for years. Weight: Barrel length: Barrel thickness: 21 Gram 50.80 mm 6.35 mm 23 Gram 45.70 mm 7.20 mm 25 Gram 48.30 mm 7.20 mm 27 Gram 50.80 mm 7.20 mm