With 365 Archery's replaceable core system, you no longer need to replace your entire target once the bullseyes are shot out. Just simply remove the old core and slide in a new core at the fraction of the cost of an entirely new target. The High Performance Core Target is manufactured with the same special blend of durable, self sealing foam that all 365 Archery's targets are know for. Replacement cores are available in 2 sizes, 10"x10"x10" for our standard targets or the 14"x14"x14" for our XL targets.