I experienced a lot of problems with my Great Dane climbing over my fence into my neighbours yard. It didn't matter what I tried she still managed to find her way over there. I did a google search to try and find a Containment System to keep my dog in my yard. Then I found this company, Sureguard. After speaking to them several times about the product that would best suit my needs I chose and bought a Solar Powered System. Everything was done over the phone and the product arrived within 2 days. It was very easy to install and was up and running within approx. 1 1/2 hrs (I am on acreage) and my dog learnt very aquickly that no longer was she going to be able to go over the fence :)