Cheap And Discounts 20pcs Empty AB Glue Tube 50ml Cartridges 1:1 2:1 4:1 10:1 Adhesives Dual-Barrel with Cap and Sealing Pistons for 50ml Glue Guns Wholesale. Buy Directly From Merchant Pro Tools&Hardwares Manufacturer Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.