The Steel Protector Plate is designed to extend the life of wood 2x4's by stopping low hitting bullets. The plate is constructed of 3/8" AR500 steel and is designed to stop most common handgun and rifle cartridges. 3.5"x20" 3/8" AR500 steel plate, rated for 308 at 100 yards. Ships with mounting hardware, 1/2" carriage bolts, washers and nuts. 9/16" drill bit is required Wood 2x4 NOT included If you are unsure what thickness you need, please consult our comprehensive Cartridge Guide. This Steel Protector Plate should hold up as long as you 3/8" AR500 Target! All targets ship unpainted. Our Shipping is priced to the lower 48 only, and will ship via best method. Contact [email protected] for additional shipping inquiries. https://youtu.be/KRUQ2ylLQTM