This is full size block cover (C8),it is 28cm long, 14cm wide, 4cm high and 50g heavy,moderately interlocked to all blocks，It is made of plastic ABS, so it's hard enough to build walls and furniture and used for indoor and outdoor.and also used for children toy.

We (NTT) founded in 2010, our business focus on new manufacturing facilities innovation and new rapid

construction technology.