Original LAIX B1 Portable Tactical Pen Self Defense Tool Aviation Aluminum Anti-Skid Tool Self Guard Pen Price: US$6.77 Free Shipping Buy Now For just US$6.77 , buy LAIX B1 Portable Tactical Pen Self Defense Tool Aviation Aluminum Anti-Skid Tool Self Guard Pen from the China wholesale webshop. Buy Now you can track your packages after an order has shipped.