Chain Keeper

Very well made

Cool piece of hardware! Exactly what I needed to work on the chain of my bike that I use on a home trainer, without a read wheel.

Great quality

Similar to my review of the front dropout protector, this is a great quality product. I opted for this over the rear dropout protector for flying with my bike. And again, I'm giving 4 stars because I wish it were a bit lighter because I am planning to use it when flying. (Of course, I'm sure there's a trade off in strength if it were lighter.)