Perfect Tea Ball by Teavana;

The key to a perfect cup of tea! Simply add your favorite tea and twist the top on. Made of stainless steel for durability, this tea ball features many tiny holes to keep even the smallest teas out of your cup while allowing the flavor to drift out. And it has enough room for the tea leaves to fully unfurl, which is important for great tea. You can use the hook to hang onto the edge of your favorite tea pot.