Premium Hildebrand spruce wood arrow shafts. All shafts are 11/32" in diameter and 32 inches long. These are premium shafts with grain running the entire length of the shaft. Choose from 3 different spines categories - 45/50, 50/55, or 60/65. Each bundle will be matched within 5 pounds of spine and 10 grains of mass weight. Each package contains 12 shafts.