We brew our take away tea using this, and also use it at home when we are making tea for one. The hook on the end of the stainless steel infuser allows it to hang from the side of your mug. The infuser is large enough to brew good quality whole leaf tea, unlike many lower grade infusers in this class.
When you have brewed the tea, you simply turn the infuser upside down and with one tap the leaves fall out. With no moving parts this will be with you for years to come.