This is an interesting mug with exterior building surface. A coffee mug and construction set all in one! Drinking coffee while building something is really a wonderful thing.
Features: Material: food grade non-toxic plastic. A cup comes with a bag of accessories (3-4 blocks random). There are standard interfaces on cup\\\'s body and handle. You simply choose blocks that you like, stand them on it and create the unique mug cup. This cup is compatible with LEGO, PixelBlocks, Mega Bloks, KRE-O, and K'NEX, etc. building blocks. Capacity: about 350 ml.
Note: This product can withstand 100 degrees centigrade, but cannot be put in microwave and dishwasher. Please wash it by hand!