Carbon Express Nock Collars Tank 23D 400/X-Buster 500 12 pk.

BullDog nock collars provide added strength and durability to the nock end of the shaft. Helps prevent cracks from nock end impacts. Provides protection from nock end impacts;Helps prevent cracks from nock end impacts;Available in sizes: Tank 23D 350/X-Buster (400), Tank 23D 400/X-Buster (500), Tank 27