When our new rescue dog was able to slip through the bars of our fencing, we researched and found this "Dog Proofer" fence and could not be happier with the look and the results! Hubby didn't want to purchase the Zip Tie Tool, but I thought it would be useful -- and I am so glad we did! Saved us so much work on tightening the zip ties (he wanted to tighten them with pliers!); just "pump" the handle to tighten, then put the other handle to cut the end off. So easy!! The only issue I had was I sometimes confused the two handles and cut the ties before I had tightened them to my satisfaction. Thankfully, we had plenty of extra ties for those mishaps! :-)