Mortite Rope Caulk is a roll of putty that is used to control the amount of air that enters and exits the home. It deters insects, bugs, dirt, and contaminating air from entering the home. Installing caulking rope is as simple as pressing it into place using your fingers. Along with being simple to apply, it is self-adhering and easily removed. It is ideal for renters and anyone not wanting to make permanent changes to the home. Each roll of caulking rope is 45 feet in length, allowing application on 3 windows that are average-sized. Mortite Rope Caulk is available in both gray and brown color.