Set includes six 6 inch diameter round steel shooting paddles with 3in tubes (1" ID, 1.25 OD) for DIY dueling trees. These paddles are 7.75 inches in length overall. To ensure sufficient upright clearance with a quick full rotation, we recommend 7/8in - 1 1/2in angle iron. No larger. These 3/8in. AR500 steel targets are great for most pistol and rifle rounds, including magnum calibers. Targets made from 3/8in. AR500 plate are rated to 3000fps at 100yards. Steel shooting targets are precision cut with a CNC plasma cutter and submersion water cooled during the cutting process to maintain the integrity of the shooting targets, ensuring the longest life. Reversible steel target face doubles the life of the shooting target Most orders ship out same day payment is received by (11am CST) Mon. thru Sat. Most orders are shipped USPS Priority Mail (delivery in about 2 to 3 business days). Warnings Shooter and spectators must always wear proper eye and hearing protection. Recommend minimum distances from steel targets to shooter are 15 yards for pistols and 100 yards for HP rifles. These steel shooting targets are not designed for use with shotgun slugs, steelshot, BBs, armor-piercing, steel-core, or other hardened ammunition. Do not use a steel target that has been deformed or damaged. Disclaimer Buyer assumes all responsibility for the use and misuse of the purchased steel targets.