these are a nice replacement feathers, but kind of expensive. But on the plus side there are all diff types to put in, so its good. I like it

Pros: good

Cons: none

These are good for my scratching post (it came with some on it). I'm trying to get my fiance to buy more to replace the ones I had to throw out. BabyKitty goes nuts over her "danglers" while using the post. My other cats seem to have grown tired of them, which is another reason I want more. It took 2 years to shred one of the long "furry" teasers.
The only thing I've had a problem with is 2 of my 6 cats got claws stuck in the clasp thing. Storm did it once when she was a kitten. And, BabyKitty has gotten hers stuck 3 times in the last month. When she screams, I have to drop what I'm doing and "un-attach" her from her toy.

Pros: work great on my scratching post

Cons: claws get stuck in clasp

We like these teasers for our Savannah cats. They go crrrrazy over them. I like that fact that the teasers are interchangeable, too. They are quite fragile, though. They tend to get yanked off by our Savannah cats. One strong tug and off it goes and sometimes with the chain which is what makes them interchangeable. We buy them, however, because our cats are hybrids and tend to be a little stronger than the average cat.
We just keep extra teasers and wands around.

Pros: there is a replaceable teaser for the wand.

Cons: they do not hold up well to Savannah cats.

This is a nice replacement kit for your teasers. The cats always eat the feathers off of the teasers. You must use these toys only under supervision as the small pieces can be a choking hazard.

Pros: Entertaining, fun,

Cons: Choking hazard, need to be replaced

I haven't tried this but it seems like you would always have something to have the cat play with

Pros: Always have it ready for the cat

Cons: Cat may get bored