I have up for bid (24) 11/32". Classic Bohning Index Nocks for fletching arrows. With index nocks you can tell were your cock feather is in low light.. (glue on) YELLOW These work good on wood shafts " 11/32", 23/64" and on fiberglas, and aluminum arrows. . On the 23/64" shafts they set up on the shoulder. ALL OF MY NOCKS GO ON A TAPERED END ON THE SHAFT (GLUE ON) Happy bidding