The Geert Nentjes 90% from BULLS is a dart set with barrels made of 90% Tungsten specially made for the Dutch professional darts player Geert Nentjens. This dart is available in the following weights: 23g, 24g, 25g. Geert Nentjes 90% darts are supplied as standard with: 3 Bull's shafts and 3 Bull's Geert Nentjes Flights. 23g: 52.00mm, 7.01mm. 24g: 52.00mm, 7.15mm. 25g: 52.00mm, 7.25mm.