Glue Dots(R) Advanced Strength Dots provide a strong, permanent bond without staining. The Don N Go dispenser fits in the palm of your hand and is perfect for quick fixes and repairs. With a small footprint, the Advanced Strength Dot N Go stores easily in a toolbox or drawer for easy access. Ideal for tough jobs and DIY projects that require exceptional holding power. Since Advanced Strength Dots are non-toxic, acid free and photo-safe they're great for model railroading projects such as applying printed or photographic signs to signposts, billboard frames, building walls, bridges, freight cars and more without worry of drips or spills. The adhesive material is amber in color.