5.2mm Automatically LED Lighted Arrow Nock Compound Bow Archery Arrows Nock +Screwdriver Hunting Shooting Accessorie

Specifications: Material: PC Type: Automatically lighted Colors:Red,blue, yellow, green, purple Suitable size of : 5.3mm Features: High-visibility LED No assembly reuqired Bowstring activated ON-OFF switch Can be used continuously for about 36 hours Suitable for any aluminum carbon arrow shaft with an inner diameter of 5.3/6.2/6.3MM The actual use was very bright for the first three nights and began to weaken by the fourth night. . Attention: After 3 or 4 days use, the battery may go down, do not throw it away, put it away for a period, and then use it again, and do this again and again, till the battery completely exhaused . Package included: 3 Pcs Arrow Nock + 1 Pcs screwdriver Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.