20 Pcs Electric Fence Tightener Wire Tensioner Insulator, Plastic Cord Tensioners, Black

I love these things. So easy to use and they work great. Wish I had found these things years ago. It would have solved a lot of problems on my sagging fence

Good way to tighten your electric wire in a fence. Good high quality tighteners. Easy to use and work great.

Better design than the ratcheting style I have used, which is weak, doesn't get the rope tight, is rapidly degraded by sunlight, and can't be placed in the center of a line without cutting the rope. These fence tighteners solve all of those problems. I found them easy to use and effective at a good price. Time will tell how long they last.

Works perfectly on electric twine fence wires. Quick delivery and described accurately by the seller.

I should have gotten these years ago! I used to wrap the wire around one of the insulators to tighten them up. Eventually they pop off. With these I can tighten the poly wire like a guitar string.

We have electric fences that sag a little over time. I use these to easily tighten the strings of wire. I wish that I had these around years ago. I do not install these with the fence hot.

Works very well. Only took a few seconds to figure out. Didn’t even need to look at the directions.

I'm using these to adjust my overhead grow lights. Much cheaper than the pulley system.