It has fine enough grating to prevent even the finest tea from leaking into your cup: Rooibos is the main culprit. Rooibos is so delicious and so good for you, but it is also very fine. This infuser has fine enough grating that it won't leak even Rooibos tea into your cup!
It's durable: unlike some infusers that wear out after time this infuser is built to last. Some of us have had our Stainless Steel Cup Infusers for almost 5 years, and they're still in great condition.