The Maverick 80% from WINMAU delivers unsurpassed grip control with popular parallel profile. The Onyx Coated version completes the iconic range. In short, a wonderful set for beginners. This dart set comes in 5 weights; 21-22-23-24-25 grams. 21G = Barrel Length: 48.30mm, Barrel Width 6.75mm. 22G = Barrel Length: 48.30mm, Barrel Width 7.05mm. 23G = Barrel Length: 48.30mm, Barrel Width 7.35mm. 24G = Barrel Length: 48.30mm, Barrel Width 7.45mm. 24G = Barrel Length: 48.30mm, Barrel Width 7.50mm