Abstract: Construction kit including construction blocks (2) and connection parts (4, 4?, 4?, 4??, 6) for coupling the construction blocks. The construction blocks comprise openings (18) for the insertion of the connection parts formed by a pair of constituent elements (4a) pivoting with respect to one another. The rim (26) of the opening comprises eight or more teeth (22) distributed over the periphery of the opening. Some of the connection parts comprise teeth (68) arranged in a groove (66) which are configured to interlock with the teeth (22) of the rim when the connection part is in the locking position.

Abstract: Construction kit including construction blocks (2) and connection parts (4, 4?, 4?, 4??, 6) for coupling the construction blocks. The construction blocks comprise openings (18) for the insertion of the connection parts formed by a pair of constituent elements (4a) pivoting with respect to one another. The rim (26) of the opening comprises eight or more teeth (22) distributed over the periphery of the opening. Some of the connection parts comprise teeth (68) arranged in a groove (66) which are configured to interlock with the teeth (22) of the rim when the connection part is in the locking position.