This glass is borosilicate glass and therefore not as heavy as normal glass. There is light in the hand, some believe thus perhaps it would be cheap and poor quality. What is not the case.
Since it is made for 400ml, it is also dementsprächend bigger than the usual cup but you need so no "paws" to take it into their own hands. I have no big hands and it works wonderfully. b
It is double-walled blown so you do not burn yourself when freshly brewed tea or fingers have to wait long until the glass can take into their own hands. This is not a thermo cup to keep the drink warm longer, please do not confuse.
Because some do not read what is written on the packaging it I mention it to talk:
Is suitable for the dishwasher.
But must not be placed in the microwave or in a warmer !!!
I would recommend this tea glass full.