Designed to work together, the Sili Glue Roller and the Sili Glue Tray help you make quick work of larger glue up projects. It doesn't matter if you're an arts and crafts hobbyist, a professional woodworker or model making enthusiast, this combo pack will be a useful tool when you need to perform larger glue ups on your projects. The Sili Glue Roller is made with angled grooves which allow the glue to be worked into the roller and help retain the glue on the roller. The recessed grooves also keep the glue from dripping too quickly and gives you ample time to apply the glue to your project regardless of size.