Grip Strip - 3.5 inch x 176 feet
Grip Strip Backer Rod is a closed cell trapezoid shaped backer rod which, under normal use will not cause blisters in chinking material. Grip Strip Backer Rod has a unique design that provides excellent fit with a flat surface within the chink joint, resulting in saving on chinking. Grip Strip Backer Rod can be used on exterior or interior logs. Comes in 4' lengths. Repels moisture. With Grip Strip, no tools are necessary and it follows with the curvature of the logs. This product really grips to the logs and stays in place.