Nockturnal FIT Universal Size Lighted Nock, Blue/Green Strobing - NT-320

String-activated lighted nock with strobing dual LED lights that alternate after arrow release, featuring universal FIT design compatible with X-diameter arrows and GT S/H arrows with included adapter sleeves. Ultra-strong impact-resistant clear polycarbonate construction with lithium battery providing 20+ hours of runtime. Made in the USA with 1-year manufacturer's limited warranty.