Super bright for superior flight visibility, the lighted CenterPunch HPX is equipped with TenPoint's Alpha-Blaze HPX Lighted Nock with easy activation and deactivation. Upon firing the crossbow, the bow string pushes the nock fully into the bushing and activates the LED Light. To deactivate, grip the nock and pull straight out with your fingers. LED Light lasts approximately 24-hours when activated. Measuring 20 inch in length, weighing 445 grains, & featuring 15.5% FOC, the CenterPunch HPX is spine-aligned to the odd color vane & is TenPoint's most accurate 20a ^2 arrow. Each arrow is inspected for straightness to within .001" and each package is weight-grain matched within 1 grain per arrow. Featuring a unidirectional carbon inner layer for stiffness, and a woven carbon fiber outer layer for impact strength, the arrow is equipped with the patented Alpha-Nock HPX. The NEW Alpha-Nock HPX features a Nock Retention Groove that snaps into the TriggerTech trigger box on the TRX 515 & TX 440 allowing the user to both hear & feel the positive engagement of the nock to the string-indicating your arrow is properly locked & loaded in the crossbow. In addition, the "snap-in" design of the Nock Retention Groove eliminates the fit disadvantages & string wear associated with "snap-on" nock designs. Carbon inner layer and woven carbon fiber outer layer 20 inch long, 445 grains 15.5% front of center 3 inch Bohning X-Vanes Alpha-Blaze Lighted Nock for superior arrow flight visibility +/- .001 inch straightness tolerance Each 6-pk. is weight-matched to +/- 1 grain for consistency Order today!