The Teasup Tea Infuser makes brewing loose leaf tea easy wherever you are. In fact it's as easy as using tea bags without the waste, and it's dishwasher-safe. Simply place the infuser into your cup/ mug, add your loose leaf, pour over the hot water and put on the lid. When you've infused your tea, you can take off the lid and use it as a coaster for your infuser. Technical details: food grade 304 stainless steel, with food grade silicon gloves. Depth of 6.1cm, perfect for most types of cup/ mug. Great for loose leaf tea