Low profile provides optimum clearance Modified shield cut reduces drag and crosswind interference Optimum stiffness maintains downrange speed Excellent memory for consistency Designed for target archery; use with small diameter 3D and field archery arrows Adhesion guaranteed on TAC fletchings when you use TAC Primer Pen and TAC Glue Height: .440" Low-profile vane Length: 1.75" Weight: 3.6 grains 36 pack Made in the USA