The C&H Precision plates are designed, manufactured, and shipped from the C&H small family-owned business in Coastal Georgia. Each plate is precision machined to the tightest tolerances on HAAS CNC machines and each plate goes through multiple quality checks before shipping to the customers.Features : Thickness: V4 MIL / LEO Plates are .095" to .099" thick Material: Plates are made from Mild Grade steel. All mounting hardware is Stainless Steel Finish: Plates are MIL-SPEC Type III Hard Anodized - Black INCLUDED: Qty 1 - Optic Plate, Qty 2 - M3 Plate Mounting Screws