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Fills Narrow Spaces Before Sealing: This 6 mm backer rod helps fill narrow spaces before applying sealant or caulk, supporting neater work around joints, cracks and edges Flexible Foam Construction: The soft, compressible foam conforms to irregular cracks and gaps, helping create a snug fit before sealant application 5 m Cut-To-Length Roll: The white sealing strip is supplied in an approx. 5 m roll, so you can trim the length needed for doors, windows, meter boxes, cabinets or repair areas Useful Around Home Repairs: Suitable for electric meter box covers, wall gaps, concrete cracks, driveway joints, door gaps, window gaps and general household sealing applications Simple Press-In Application: Cut the strip to size, press it into the gap or joint, then add sealant or caulk if needed for extra sealing and a cleaner finished edge