Review on Caulking Cord by M D Building Products: A Reliable Solution for Sealing Gaps and Cracks by Brian Kumar

Makes a big difference in preventing cold air from entering windows and doors due to air leaks circa 1956 in an old house I rent. Made it a lot more efficient. Pretty fun sticking it in cracks and plugging leaks. The rooms are much more comfortable and I know I've saved money on my heating bills. I don't know why white costs twice as much as gray. Easy to remove, won't leave stains or stains.