I've had a few of these connecting four boss pedals for about 5 months now and everything is still working fine. I'm surprised they haven't broken by now considering the price, so they're probably more durable than your thinking based off the price.

The only problem I see with them lies either with my boss pedals inputs being at slightly different heights or these couplers might be bent a tiny tiny bit. Sometimes a few of my pedals are lifted up about an 1/8 of an inch or so. Which does help support the fact that these things are durable, but it is a small annoyance.

Most pedals I use incorporate the power switch into the IN jack. You have to unplug them in order to not run down the batteries. If you plan to fasten your pedals to a pedal board and use batteries in your pedals, then these won't work for you because you won't be able to unplug the side going into the IN jack on the pedals.

These are great if and only if you're matching up pedals of the same brand and design...like Boss to Boss...or DOD to DOD...

If that is your situation, then these are great.

I bought 5 of these couplers for my pedal board. I did not heed the warning of an earlier review. There is problem with height issues of the inputs and outputs of your pedals that I thought I could get around using cardboard to compensate for the off set problem. I was wrong. Unless you have a perfect pedal board with the same kind of pedals through out and have no plans on changing around any of them then buy this product. It's just very impractical. Do your self a favor and buy the off set couplers instead. Don't make my mistake; especially if you don't like sending stuff back through the mail.

It fits perfect between your pedals. These are good for pedal boards too.