We are so confident in our product that we have a lifetime guarantee. This guarantee covers everything except for abuse and normal wear. Abuse would be shooting the plate with armor piercing or steel core rounds, shooting overly powerful rifle rounds, and shooting the plate closer than the recommended distance. Lock nuts and bolts are considered a consumable and are not guaranteed. Shooting at stuff that isn't supposed to be shot, like the stand itself, is not covered. Normal wear would be light safe marks from high velocity rifle rounds, excessive wear from heavy rifle use is not. Targets will eventually fail from heavy center fire rifle use and this is normal for AR500 targets. If you have any issues please contact us right away as we take our quality control very seriously.