Miniland Activity Nuts and Bolts School Set Miniland's 72-piece set of Nuts and Bolts can help kids learn about colors and shapes, while they have fun fitting the pieces together Chunky plastic nuts and bolts in assorted shapes and colors. Comes with teacher-tested activity cards to help kids learn colors and shapes Made of highly resilient plastic, suitable for use by children aged 3 and over. Bolt measures 2-1/2", nut measures 1-3/4" Manufactured according to strict European safety standards Miniland provides educational experiences for children - but we never forget the value of play