Dead Ringer Trauma 100 Grain 2-Blade for Broadheads (3-Pack), 2-Inch Patented system that allows you to change blade width from 2-1/2" to an industry first of 3-1/8" Hand-polished, 100% hardened .032 stainless spring steel blades Heavy-duty Trocar tip design for bone shattering penetration Blades have been tested to over 400fps with no pre-deployment Adjustable cutting diameter from 2 1/2" to an absolutely devastating 3 1/8" Super durable construction T-6 aluminum ferrule Patent pending blade adjustment system