Fruit Fly Trap, Gnat Trap 20 pack

I've been using various adhesive fly strips throughout our Pomeranian Kennel for the past 12 years. The company I was buying them from no longer offers them. So, I decided to go with this company. I bought one box of 20 to see how they performed. Out of the box of 20, I had around 7 to tear, the string to hand them from the ceiling pulled out even before I could get the paper pulled out, or the paper pulled out of the cylinder they were put in. Well, I thought to myself that 7 of 20 isn't too bad. Boy was I wrong. I bought three boxes of 20. THE FIRST 13 I TRIED TO INSTALL EITHER THE PAPER RIPPED IN THE MIDDLE, THE PAPER RIPPED AT THE BEGINNING, THE PAPER PULLED OUT OF THE CYLINDER, OR THE STRING PULLED OUT. 13 OF 20 FAILED. Over the past 12 years, I have used hundreds of these. I have a very sensitive and smooth way to pull the paper out with great success. NOT WITH THESE. My method failed in first 13 I tried to install. Don't get me wrong, these strips work great in controlling flies and gnats. NOT THESE. Hell, I couldn't even get the first 13 out of the cylinder without a total failure. I even dropped on on a Pomeranian and it was a nightmare getting the sticky crap out of her fur. I had to wash that area about four times to get the stick crap out of her fur.