EPDM Backer Rod, Foam Caulk Saver for Gaps and Joints,1"-by-20 Feet, Black

ToLanbbt Backer Rod EPDM Rubber 1" Diameter x 20' Length Caulk Saver Door Window Weather Stripping Seal for Concrete Filling Joints and Gaps (Black)

Gorilla All Weather Outdoor Waterproof Duct Tape, UV and Temperature Resistant, 1.88" x 25 yd, Black, (Pack of 1)

M-D Building Products - Versatile Gray Foam Backer Rod - Set 5/8in x 20ft - Essential Caulk Saver for Sealing Concrete Gaps, Expansion Joints, and Crack Filling (71506)