Nema Automatically Lighted Arrow Nock -45.5mm - Blue - 3 Pcs Arrow Puller

Automatically lighted after shoot, you do not need use hand to light it first! 2. Fits all arrows with inside diameter .245" - .246" Carbon Shafts 3. These PRECISION LIGHTED NOCKS are constructed of a super tough polycarbonate material with a press-in-fit design. 4.Their double-snap throat WITH SPECIAL STRING ANGLE COMPENSATION keeps arrows on the bowstring, even at extreme angles and with string loops. 5. Insert the nock into shaft, align it to your desired position and you're ready to shoot - no magnets or switches. 6.The nock has a string activated linear switch that is housed within the nock and will not turn on or off accidentally. 7.Battery ( non-replaceable ) last over 24-48 hours. 8.After arrow retrieval simply push back activator switch located in side of nock to the off Length: 45.5mm Nocks diameter: Approx. 6.2mm Material: Plastic + Metal Package Included: 3x Automatically Lighted Arrow Nock