Electric Fence Tightener 12-Pack Black in line Tensioner, Wire Tensioner Portable Tape Tighteners

Used on electric fence. They must be installed when running new fence wires. Installed they work very well and keep the wires/line tight. Easy to install and use.

I wonder if they will last (plastic), but used them to tighten galvanized wire berry trellises. They are easy to use and convenient to tighten as the wires sag. So far I'm very happy with them.

These work great, just have to remember to string them on the wire as you run it out.

This electric fence tightener does exactly what it’s supposed to. It’s simple to use, sturdy, and makes tightening the fence quick and easy. Nothing fancy, but it gets the job done.

I got these things because I was trying to keep a lumbar support thing tied securely to my chair; the tent cord I was using was not tying securely enough, so the knots would inevitably loosen within an hour or two. With the tightener, I can thread both ends of my tent cord through the axle, and crank it tight. I have detected zero slackening over a period of weeks now.

Worked well for the poly wire fence I put up around my garden. I am glad I used these as the wire seems to slightly stretch over time. Just remember to put them on while putting up the fence, hard to add after.

Tightens but gears are plastic and slips with tension

Used to lighten a line for support. Easy!

Apart from the fact that I ordered a 12-pack but received only 1 item, the problem with this product is that there is no way to attach this to an existing wire without threading it on from one end of the wire. If you have a very long electric fence as I do that needs tensioning only in certain sections this just isn’t practical. You need to add these tensioners when you first assemble your fence. As you can see from the photo there is no way to disassemble this product to attach it mid-wire.