Cheap And Discounts NITECORE NTP31 Tungsten-steel Glass Breaker Tip Ballpoint Pen Multifunctional Bolt Action Tactical Self-defense/ Spare PenRefill Wholesale. Buy Directly From Merchant nitecorelight Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.