Bohning Spin-Fletcher designed by Danio Campanelli for use with mylar vanes up to 70mm (2.75"). Right or Left hand fletch available. Fast and Portable refletching device. Handy carry case included. Compact design easily fits inside pocket or bow case. Works with shafts outside diameter as thin as 4.5mm (0.177") OD and as thick as 7mm (0.275") OD. Works great with Bohning premium fletching tape.