Never lose sight of your shot with New Archery Products' Thunderglo Illuminated Crossbow Nocks. Constructed from highly durable polycarbonate and aluminum, these half-moon nocks are specifically built to withstand the intense force of modern high-speed crossbows. The brilliant LED illumination allows you to easily track your bolt's flight path in low-light conditions and makes retrieving your arrow a breeze, adding a crucial layer of confidence and visibility to your hunting setup.