Nexxus Infinity Shafts 400 1 Doz. Defender Aluminum outsert system increases penetration and durability;Micro shaft has less wind drift for improved accuracy compared to SD shafts;5.9mm OD;4.2mm/ .166 ID;Includes alloy outsertstable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 1000 Product Group Code: 1000B Product Sub Group 1: 1000B1 Pack Size: 12 Inactive: Yes