3/8"x 20' Caulk Saver

3/8" x 20', Caulk Saver, Reduces The Amount Of Caulk Needed To Fill Large Gaps, Works With Virtually Every Type Of Caulk & Sealant, Made Of Durable, Resilient, Moisture Repellant Poly Foam, Just Press In Place, Then Caulk On Top Of It.