The CXL™ Pro performs even better than its predecessors. The lightest line-cutting shaft in the Carbon Express® portfolio, its large diameter optimizes a shooter’s ability to cut the line for a higher score. The CXL™ Pro is available in three sizes to fit all draw weights and meets all IFAA, NAA and FITA standards. Spine-selected for a consistent matched set. -Patented Diamond Weave – unparalleled spine consistency -BullDog™ nock collar – unrelenting strength and durability for nock end impacts -Straightness: ± 0.0025" max. -Weight tolerance: ± 1.0 grains