Price per 12pcs

Easton X10 uses the #1 nock collar
Easton X10 Protour 670, 720 & 770 uses the #2 nock collar
Easton X10 Protour 520, 570 & 620 uses the #3 nock collar
Easton X10 Protour 420 & 470 uses the #4 nock collar
Easton X10 Protour 340 & 380 uses the #5 nock collar