One of our cats damaged a family heirloom (Korean imported silk screen) by climbing on it. We have a very open floor plan house, and are limited as to where we could display it. My husband was so upset.. he was at the point where it was the cats or him.. but somebody was leaving. I searched the internet for a solution and found Invisible Fence of Greater Dallas. The website was more dog focused... but I called anyway, desperate for a solution. I was delighted to hear it could be used for cats. Bobby with Invisble Fence arrived promptly, and explained the system how it functioned and why it was a good selection for my cats. He evaluated the areas we wanted to deter the cats from and calibrated the disks to the appropriate field. He explained how the collars could be set to allow different pets into differnet areas, and how if we got a dog in the future, he could be added to the same system. Bobby assisted in helping us train the cats, so they would understand where the invisible barrier is, and how to escape the area. He also evaluated the cats to ensure that they were of suitable size ( 6 - 7 pounds min) for the system. One cat took immediately to the system and stopped accessing the "off limit" areas. The other cat persisted in entering the areas. Bobby returned at no cost to us, and incresed the shock level on her collar. She occasionally tests the barriers, but with one shock decides that it is not worth it. Our cats have remained unharmed by the system. Finding this system was a unique solution to a complicated situation. We have had the system in place 8 months and have had to relpace the batteries in the cat collar's once. And most importantly both husband and cats have made peace with one another. :) The system was not cheap, but it was worth it. We are very satisified and would continue to use this company and service. They even special ordered us some really cute collars, our girl has a pink camoflague collar and our boy a green checkered print.