Description Parallel Arrows Test Kit – Not sure what spine you need? We can help you figure that out with our Parallel Arrows Test Kit. This kit comes with 12 port orford cedar arrows in three different spines at full length, approximately 33″. Arrows are fletched with 3 solid 5″ Left Wing Parabolic feathers. These do not come with points. Kits Available Kit 1 includes: four of each 11/32″ 35/40#, 40/45#, and 45/50# Kit 2 includes: four of each 11/32″ 40/45#, 45/50#, and 50/55# Kit 3 includes: four of each 11/32″ 45/50#, 50/55#, and 55/60# Kit 4 includes: four of each 11/32″ 50/55#, 55/60#, and 60/65#