Get the additional Snap Modules 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 plus 200 new projects;Snap Circuit Snap Modules are cross compatible with Modules from all other Snap Circuit Kits;An addition to the Snap Circuit Line of Award Winning Electronics Discovery Kits

• Snap Circuits SC-100 to SC-300 Upgrade Kit (Multi-Color)
• Assorted

Snap Circuits SC-100 to SC-300 Upgrade Kit (Multi-Color)Elenco Electronics Inc