The design is simple, yet effective, as the infuser can be rested on the rim of the mug to allow the tea to sieve and the upturned lid doubles as a stand for the infuser while the beverage is enjoyed. The large infuser allows for a variety of flavour combinations - ice and lemon in the summer, cinnamon and nutmeg in the winter - or whatever your heart desires. Infuser is made of odourless and durable stainless steel, with borosilicate glass mug provides maximum heat retention so that you can keep an eye on the strength of your brew