Cardboard Connectors Set

Let imaginations run wild as students construct massive cardboard bridges, buildings, or forts using this durable polypropylene hardware building set. Students develop engineering and architecture skills in three-dimensional spaces as they solve problems and discover the strongest connection points for larger constructions. Unique channel and tab design allows students to press nuts on quickly and twist to lock in place for more efficient building. Press until tight for the most support or lock at any point on the shaft for pivoting cardboard panels! Set includes 25 nuts and 25 bolts. Recommended for Lower Elementary and up.