Easton X10 collars to fit X10 & X10 Protour shafts Nock collars to provide extra protection at the back end of the arrow against damage from other arrows. See table below to find the size you require: #1 #2 #3 #4 #5 X10 All Spines - - - - X10 Protour - 770, 720, 670 620, 570, 520 470, 420 380, 340
