【10 Feet Concrete Crack Filler】Our foam rope is made of foam in round shape, with the features of good consistency and sturdy. Different diameter for your choices . The length should be about 3m/ 10 feet each. For water and temperature resistant, the baker rod has ensured long-lasting performance. This flexible and soft foam gap filler will fill cracks adequately and tightly. 【Low Cost and Dependable Backer Rod】Our foam baker rod is a low cost way for you to fix gaps and joints. The concrete crack filler caulk foam can be used to fill large gaps and openings to prevent drafts and can be used when the old caulk was badly cracking. It is a very useful tools in your house, not only for gaps and joints. You can use it everywhere you like in your house and neighborhood. 【More Choices for Your Need】You could choose the size and quantity of concrete crack filler according to your requirements. The backer filler rope size can be customized for various uses with scissors or blades. And the foam gap filler is great for joints between asphalt and concrete or to fill cracks in asphalt or concrete. 【Extreme Easy to Install】Our foam baker rod fits well in cracks. Easy to push into areas and easy to cut. You can easily get the desired length and put it into the gap, and you can twist multiple strands of cord together for extra large gaps. First, you should clean the area and insert the backer rod firmly and uniformly into the joint or gap. 【Wide Applications】Our foam rods help you saving a lot of filler material and works for most kinds of cracks, such as expansion joints in driveway and sidewalks, wood cracks, wall cracks, door and window joints, pavement joints, also can be used to seal windows. Foam Backer Rod for Gaps 10 Feet Concrete Crack Filler Crack Foam Joints Foam Gap Filler Caulk Saver Backing Rod Concrete Filler Rope Concrete Joint Filler