The thin curved design has minimal drag. Original Spin Wing Vanes feature a curved pocket design that traps and compresses air to rotate the arrow twice as fast as the average vane. The high-spin rotation improves arrow flight for tighter groups, even in changing wind conditions. Sizes: 1 9/16" 1 3/4" 2" 2 3/16" 2 13/16" Colours: Red White Blue Yellow Black Green
