"Made of proprietary durable, flexible MAX material, the AAE MAX Stealth Vanes deliver whisper-quiet performance. The ultra-stable, air-channeling ridges offer unbeatable durability and performance. The AAE MAX Stealth Vanes are the go-to arrow vanes for archers, bowhunters, and crossbow hunters. 2.8""L x .5""H. Grain Wt.: 8.8. 50-Pack Proprietary durable, flexible MAX material Ultra-stable, air-channeling ridges Ideal for archers, bowhunters, crossbow hunters"