The Aim-Rite Bear Archery Target has replacement parts in order to extend the life of the target. Because the midsection contains the core, which is where the scoring/vital rings are located, it tends to experience the most wear and tear. Replace the midsection as often as you need with the Aim-Rite Bear 3D Archery Target Replacement Midsection. Made from high density foam for added durability and arrow stopping power, the replacement midsection is able to take a pounding from the heaviest bows.