Here we have three styles of traditional Oriental bamboo tea strainers.
Styles 1 and 2 have super-fine mesh, yielding a perfect cup of tea.
Style 3 has pin-holes in the wood, which is perfect for larger loose-leaf tea making.
You place the strainer on top of your cup and pour steeped tea from your tea pot or jar, through the strainer, into your cup.
Then add honey or lemon or some such if you wish - and enjoy.