Set of darts: The Windson CARBIDE 21 G TUNGSTEN SET is a professional set for real players. The dark design and sharp tips make it clear that this is where darts are taken deadly seriously. The barrells of the CARBIDE are made of 90% tungsten weighi 21 grams and are in a silver finish. The flights have a shiny metallic finish for a great effect and increased thickness of 150 microns for greater strength and a longer life.