No drips, odors or wait times - these double-sided adhesive dots with paper, plastic, foam, wood, fabric and more. These easy-to-use glue dots are suitable for adults and children. Pop-Up Glue Dots create three-dimensional effects in art projects, science dioramas, collages, presentations and more. One Pop Up is approximately 1/8" thick; layer them for more dramatic lifts and 3D effects. Non-toxic. Acid-free. Lignin-free and photo-safe.