I bought a pair of these fifteen years ago for my Merckx Titanium road bike. They look as good today as when I first installed them. Lightweight, durable, and inexpensive, these cages are just about perfect. They also don't mar water bottles like aluminum cages, and the stainless steel is basically indestructible.
The cages hold any water bottle very securely.
They're not carbon or titanium, so there's no bling factor, but if you want a high quality cage that will last forever you won't find a better choice.