Check Product http://s.click.aliexpress.com/e/m2Ct28o
Plastic block shape: self-locking brick
Warning: Be careful not to let children swallow
Material:Environment friendly material.
Package:no original box,new in sealed bag(Toys and instructions send together.)
Made of high quality ABS plastic, non-toxic and tasteless.
Education, good at the ability and imagination of the brain to help children develop their own creative thinking.