Check the listing for details. 3PCS Archery LED Lighted Nocks Tail 6.2mm For Compound Bow Hunting Arrow Nocks. Color: Red, Condition: New. Listed at 17.99 USD. The product is a set of 3 red,green, or blue LED lighted nocks designed for compound bows used in bow hunting. These nocks are specifically made for 6.2mm arrows and provide a bright red color for easy identification during hunting. The illuminated design helps ensure accurate and reliable performance while out in the field. Perfect for hunters looking to enhance their archery experience and improve their chances of a successful hunt.