Carbon Express T3002 ThunderStorm, Carbon Arrow Shaft (Designed for Intermediate and Low Poundage Shooters), 29-Inch Length, 12-Pack Spined to fit the requirements of youth draw weights Bare shafts come with an adjustable nock for precision tuning and accuracy (nock color may vary from image) Item specifications: 29-Inch Size, 8.3-GPI, 0.499-inch Spine and 0.285-inch Diameter 12-pack of black finished shafts