All Hybrid vanes are manufactured using our industry-leading Plastifletch Lick & Stick material with a factory-applied activator. It features the new Base Dynamics design in addition to AAE s legendary stabilization ridges for the ultimate in ease of fletching, durability, and performance. Product Features Length: 2.80" (+/-.05") Height: .50" Grain Wt: 8.5 +/- .5 grains Tough material with great instant adhesion! World s best quality and colors Glue activating base Bright, visible colors Excellent memory & durability