Get the additional parts and manuals to take your Snap Circuit Kit to the next level;UC-30 Converts your Snap Circuits SC-100 to the Snap Circuits SC-300;Includes 30 new parts including AM radio components, transistors, ICs, capacitors, resistors, and more;200 more projects;Part of the extremely popular Snap-Circuits educational electronics series from Elenco Electronics

• Snap Circuits UC-30 Upgrade Kit SC-100 to SC-300

Snap Circuits UC-30 Upgrade Kit SC-100 to SC-300Elenco Electronics Inc