1.Made of BPA free food grade plastic 2. Build your own mug! Enjoyable for both kids and adults! 3.Mug with exterior building surface compatible with most Brand name bricks. Specifications: 1.Material: BPA-Free Plastic 2.Capacity:12oz/350ml 3. Size:16*16.5*28.7inch(approx) 4. Color: Black 5.Shape: Handgrip 6.Weight:300g Package included: 1 pc Mug and comes with one pack of bricks! Note: Can not be use the microwave Heating. This mug is not officially licensed by LEGO, PixelBlocks, Mega Bloks, KRE-O, or K'NEX Bricks. But is compatible with them all!