OfficeSupplies101 has many different kinds of glue and adhesive. Glue sticks are solid adhesives in twist or push-up tubes. The user can apply glue by holding the open tube, thus keeping their fingers clean. Because of their ease of use, and their economic value, glue sticks are a popular school and office supply. As glue sticks are not as strong as some liquid based variants, they are primarily used for paper and crafts that do not require a high tack adhesive. They are also very popular for office and school use.