Keeping area rugs and runners from slipping has been an ongoing challenge!  We have two large dogs, three cats, and a lot of people running around regularly, so they get a lot of use.  Keeping in them in place is especially important - one of our dogs has bad hips & knees and my mom is 92 years old.  Slipping rugs is NOT a good thing!  These pads have been amazing!  Not only do they add some extra padding/comfort but the runners we have them under haven't moved at all since the pads have been placed underneath!  I will be purchasing more of them for our other area rugs and future runners.