The pot body is made of Borosilicate glass that is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (~3 × 10−6 K−1 at 20 °C), making them resistant to thermal shock, is very suitable for glass teapot making,more so than any other common glass. The lid of teapot and infuser are made of 304 stainless material,so they are less likely to go rusty.(Generally speaking,304 stainless material will go rusty in some situation, such as in an enviroment of massive Chloride ion existing.So,for avoiding this, user requires to wipe the teapot often,to keep the teapot clean and dry,dust-off.) The teapot has size of 9 x 9 x 12.5 cm / 3.54 x 3.54 x 4.92 in,and weigh of 358g, with capacity of roughly 600ML(21 oz),and capable of filling in 3 to 4 cups of tea(the cup is approximately 8cm/3.14 inch in height). The teapot can be applicable to temperature between negative 20 degrees and 150 degrees.Within this safety range,the handle of teapot will not scald your hand or go . And the spout will never allow water dripping or spattering. The teapot is safe to use on a gas stovetop, but after you finish heating the teapot, you should not immediately put the teapot on the tiles, wet floor or concrete floor, because the rapidly changing temperature would cause the teapot to break.