The Bradley Brooks 90% of TARGET s designed together with Bradley and his exact requirements. The G1 barrel design features subtle grip changes, PVD performance coating and a simple yet elegantly shaped barrel. The 90% dart has radial grooves on the front and back and is separated by a combination of smooth and nano areas in the middle, providing an extremely comfortable grip and feel for all throws. The dart is complete with Target Pro Grip & signature Bam Bam flights. This dart set comes in 2 weights; 21-23 grams. 21G = Barrel Length: 54.00mm, Barrel Width 6.20mm. 23G = Barrel Length: 54.00mm, Barrel Width 6.40mm.