Mesh Ball Tea Leaves futuristic Cosy Squeeze Filter Strainer Locking Spice Spoon Material: stainless steel. Use it in kettle,pots,cups and more. Great for Hot or Cold Tea. Filter tea, coffee, hot brine ingredients and soup. Use it in kettle, pots, cups and more. Easily Brew the Most Flavorful Tea Easily Clamps Tight to Keep Tea or Spices Secure. Ideal for Spices or Loose Leaf Tea,perfect for making a refreshing cup of tea.