Can be used with regular cups, teapots, or even stock pots, this tea ball can be used for loose leaf tea, bouquet garni, or spices for your winter mulled wine. The attached hook lets the ball hang from your teapot or panhandle and it is very easy to take the ball out with the hook. The tea ball is made of high quality 304 stainless steel, it is anti-rust and with great durability. Package includes: 3 Pack Tea Ball Strainers(three sizes): Small (4.5cm/1.8inch), Medium (5.5cm/2.16inch), Large (7cm/2.75inch).