Torus is a donut-shaped tea infuser and as its geometric name. The unique design of a twistable tube allows it to clip on any cup or transform into a S-hook to hang on the rim of taller tumbler. Just fill with a teaspoon of loose tea leaves, hang on a cup and let it brew. Material: Stainless steel + silicone. Dimension: 3.2" x 0.8".