Universal® Glue Stick is a washable and acid-free glue that comes in a convenient and easy-to-use stick. Great for use on paper, cardboard, photos, and fabric. The solid glue dries clear and wrinkle-free, making it ideal for archival materials. Great for use in schools, day cares, and craft projects. Adhesive Type: Solid; Product Packaging: Stick; Washable/Removable: Yes; Color on Application: Purple.