1/4 Inch x 115 Ft EPDM Backer Rod, Weather Resistant, Caulk Saver for Concrete E
The flexible rod compresses snugly and bounces back to fill the space. Apply caulk for a flawless finish — no experience needed. A key benefit — it’s reusable after careful removal. Just reposition it, reapply caulk, and tackle your next project.