Abstract: A construction toy has a main body made of plastic or rubber in one step forming and a connector made of plastic or rubber in one step forming, at least a connection groove is disposed and concave in the main body, the connector includes at least two joints and a neck fixedly connected to the two joints. The joint is coupled to the connection groove.

Abstract: The present invention provides a basic plastic component with unique stereoscopic structure for combination toy, which includes two sets of plastic plug sleeves, and the plug sleeve comprises a shell and a plug slot formed in the shell which is opening downward. The shells of two plastic plug sleeves whose upper part is small and lower part is large, are connected together by joining edges of them. Several basic plastic components with unique stereoscopic structure can be piled compactly and inserted into each other. Besides they can be combined into any shape or any pattern, which is lifelike.