Harrows Matrix Darts The Matrix series from Harrows is unique because of its conservative grip during the throw. With the right flights and shafts, this is the right dart for the beginning darter. Specifications: Barrel color: gold Barrel material: brass Shaft color: black Shaft material: nylon Shaft: Speedline Flight color: yellow, black Flight material: polymer Flight: Retina 5504 Dart type: steel tip Barrel length: 53.00 mm Barrel thickness: 8.20 mm Weight: 18 grams