Snap Circuits Jr. Select/ SC-130 to SC-500/ Upgrade Kit
- LEVEL UP! - UC-40A upgrades your Snap Circuits Jr Select kit to SC-500 with patented technology.
- GET TO THE NEXT LEVEL with additional parts and new project manuals.
- ALSO UPGRADES SC-100 to SC-500 - compatible with other Snap Circuits kits including Snap Circuits Light and Snap Circuits 3Di.