Made of glass. Easy to brew, just put the tea into the tea cup and then add some hot water, then the strainer will filter the tea then you can drink directly. 
Size: 4.9X3.4X4.6Inch(12.5X8.6X11.9cm) 
Capacity: 8.7OZ(250ML) 
Please note The lid can not be screwed. 
Handwash Only
For fan of tea, Use our cute cat tea cup with Fish tea infuser Strainer Filter.  To brew a cup of the drink per person. enjoy the most delicious and flavorous freshly brewed tea at home or at work. Enjoy your hot cocoa, milk, coffee, juice with this cute glass mug.