This item is a M-D Building Products 71464 Backer Rod For Gaps and Joints, 3/8-by-20 Feet, Gray | Purpose of use for Hardware, ropes | This product is manufactured in United States | Provides a sound surface for caulking projects | Fills large gaps and openings to prevent drafts
For use with aluminum floor metals | 1-pound economy pack | For proper use, follow instructions on floor trim packaging | 1-1/4-Inch long | Hammer into wood floors or M-D wooden pegs