Adhesive Technologies 2100-3415 Ultra Low Temp CoolGlue, Mini 4-Inch, 15-Pack Great for kid projects (Ages 10+ with adult supervision) To be used only with AdTech "Ultra Low Temp Cool Tool" gun 15-count Bag Mini (0.28 diameter) Ultra Low Temp glue sticks 4" long sticks - Great for smaller projects Viscosity at 200F/93C: 20,000 Working Time Range: 18-20 seconds