O-Rings used to keep blades closed during flight.
.008 O-Rings are used on: 100gr 2.75" Black, 100gr 2.00" Steel, 125gr 2.00" Steel, 100gr 1.5" OUTRAGED
.009 O-Rings are used on: 75gr 2.00" Red, 100gr 2.00" Blue, 100gr 2.50" Orange, 125gr 2.75" Green
.010 O-Rings are used on: 100gr 2.5"-3.25" TRAUMA
These o-rings come in a pack of 12