Black Eagle Deep Impact Nock Collar 400 12 pk. Made from durable aluminum;Protects the nock end from impact damage;Easy to install and remove;Lightweight design at 2.6 grains each;Sold in a 12-packtable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 1100 Product Group Code: 1100C Product Sub Group 1: 1100C2 Inactive: No