Bohning Blazer Vane (Pack of 36), Black 6 grains in weight The original 2 inch vane with a new look 1.987" in length, 0.568" in height Universal vane that is great for any Broad head, crossbows & 3D archery 2" long X .6" high and only weigh's 6 grains Made of extremely durable material Parabolic paddle for increased steerage Great for crossbow bolts Designed to be used with both fixed and mechanical broadheads, and yet also outperforms with field points for target shooting