The finum® HOT GLASS SYSTEM is a stylish double-wall cup equipped with perfectly matching permanent filter – a simple and elegant solution for individual tea brewing. It comes with a lid to prevent heat loss and to serve as drip-off tray after brewing. The double wall insulates hot and cold beverages alike, keeping the right drink temperature and being a pleasant surprise in your hand. It also helps to avoid heat marks on your table, normally caused by wet vapor-film rings. The lid doubles as a drip-off tray for the brewing basket.