The built-in stand fits on top of cups and carafes up to 4"/10cm in diameter. Brew a robust cup coffee using a manual pour-over brewing method. Perfect for cold brew coffee. Also, use to brew a cup of tea. Use 2-3 scoops of ground coffee/tea and pour hot water in a circular motion over grounds. Use more scoops when filling a carafe or thermos. Fine grade mesh keeps the grounds and tea leaves in the filter and out of your cup. Compact and lightweight. Perfect for home, office, RV, camping or boating.