Pack contains three 3" replacement roller covers for System Three’s 3" roller frame. These thin foam covers are ideal for spreading glue over large surfaces without absorbing a lot of glue. They remain lightweight and easy to handle while spreading glue. Great for epoxy and water-based glues. 3-pack of thin foam roller covers Works with epoxy and water-based glues Thin foam on cover won’t absorb glue Use with System Three 3" roller frame.