Use clear glue sticks to hold it all together. Dual Temperature Glue Sticks, .27" diameter, are designed for use with hot-temp and low-temp glue guns. All the little extras to help you make your projects a success. Create unique paper projects or plastic spheres. Certified AP nontoxic. Glue sticks with a .27" diameter (glue gun sold separately). ACMI Certified AP Nontoxic. For detailed information see www.acmiart.org. Less harsh chemicals - made with fewer harsh chemicals, or safer chemicals than typical alternatives, helping reduce your use of and exposure to substances that may be more harmful to your health and the environment.