Best-selling Black Archery 31" Carbon Fiber Hunting/Targeting Arrows Fletching 5" Black & Red Peltate Shape True Feathers With Replacement Screw-in Field Points Black carbon standard targeting practice arrows for traditional bow,recurve bow and longbow. Length:80cm/31.5",Shaft diameter:0.8cm/5/16".Fletching with 2 red 1 black 5'' peltate shape true feathers. Spine:450,For draw weight of up to 55 pounds bows Screw-in 67 grain nickel-plated stainless steel bullet tip perfect for hunting/targeting practice. Have good performance,low hand shock with good speed.Extraordinary durability for extended use.