Darts Harrows Chizzy Dave Chisnall Steel Brass 21 gr. .What. Brand name Harrows. The model is Chizzy Dave Chisnall High Grade Alloy. Barrel length: 57 mm. The diameter of the barrel: 8.6mm. Barrel weight: 21 grams. Total weight approx: 22.5gr. The material is brass. Type of tip: metal. Two to four millimeters. .What. The game of darts consists of 1 set of 3 bodies with metal tip Harrows Darts Chizzy Dave Chisnall, one set of three Supergrip Midi Black canes and one set of three Prime feathers.