The Supergrip 90% from HARROWS is a dart set with 90% Tungsten barrels. These darts are beautifully finished with an excellent grip. The barrels are engraved with a Harrows logo. The darts are supplied with Harros Supergrip shafts and Harrows flights. This dart set comes in 6 weights; 21-22-23-24-25-26 grams. 21G = Barrel Length: 50.00mm, Barrel Width 6.60mm. 22G = Barrel Length: 50.00mm, Barrel Width 6.80mm. 23G = Barrel Length: 50.00mm, Barrel Width 6.90mm. 24G = Barrel Length: 50.00mm, Barrel Width 7.20mm. 25G = Barrel Length: 50.00mm, Barrel Width 7.40mm. 26G = Barrel Length: 50.00mm, Barrel Width 7.70mm.