Easton .244 Brass Insert - 12 Pack - Built for Easton .244 ID carbon arrow shafts. Add additional F.O.C. for optimal arrow flight. Features break-off for either 75 or 50 grains of weight. Built for easton .244 ID carbon arrow shafts Add additional F.O.C. for optimal arrow flight Features break-off for either 75 or 50 grains of weight