EP-130 - ELECTRONICS PLAYGROUND 130-IN-1 REQUIRES 6XAA BATTERIES130in1 Electronic Playground NO TOOLS OR SOLDERING REQUIRED! These Electronic Science Labs will teach you about electronics from A to Z. With these allinone labs you'll learn about electronic parts how to read schematics and wiring diagrams. All this while building up to 130 different projects. These kits use two quick and easy hookup methods: Spring Method: Simply slip precut wires and components into special springs for a safe secure connection. No