It's not quite as big as I thought it would be (designed for a smaller mug), and it's more flexible than I expected. (I would hope that the flexibility is an asset for intended use)
Definitely only for tea leaves – teabags just don't fit, unfortunately.
Aside from that, it does what it's supposed to, so if you like your tea in a small mug, use tea leaves, and enjoy household products shaped like swords, look no further.