This is a 2-gram tube of Vigor fast set (10-20 second set time) super glue. This fast set glue is only available in the conventional one drop applicator. The outer plastic container holds a separate 2 ml. (0.07 fluid oz.) tube and a small sharp pin for poking a hole in the tube. After a few moments of non use the hole in the tube will reseal so you will need to re-poke the hole. Keep both the sharp pin and the tube in the white plastic outer container when not in use. Vigor super glues are the leading super glue in the jewelry industry. These are strong cyanoacylate adhesives that can bond any combination of metal, plastic, rubber ceramic or glass. For use on solid materials only. Not for use on wood, paper, leather, foam TEFLON or other fluorcarbons. Cyanoacylate glues have a short shelf life so that is why these small individual packs are so popular. Shelf life can be extended by storing product in a cool place. Pkg of 5