Elenco Snap Circuits Upgrade Kit SC-100 to SC-500
This is the Electronic Snap Circuits UC-40 Upgrade Kit. This kit converts the SC-100 into SC-500 and includes 42 new parts. All parts are mounted on the plastic module and snap together easily! Ths Kit inlcudes the SC-300 and SC-500 manuals addig 400 new experiments!
***WARNING: CHOKING HAZARD-Small parts NOT suitable for children under 3 years.