Snap Circuits For Kids Snap Circuits Jr. 130 Access Kit 10 Inch Jumper Leads For Arduino Snap Circuits - Snap-to-Pin to Project Connectors - Online Marketplace... 2 leads EACH in green, yellow, red and black are 10-Inch long, 2 white leads are 14-Inch long and all with Snap-to-Pin technology., 10 leads in all Snap side works with Snap Circuits, Reinforced Pin side matches to breadboard or similar insertion point Elenco has been developing and delivering educational kits, tools and test equipment to universities, colleges and high schools for over 30 years Integrate your Snap Circuit modules and components into your Raspberry Pi, Arduino, or breadboard project Pin is crimped to the lead and snapped into a casing for durability. Snap side works with snap circuits - reinforced pin side matches to breadboard or similar insertion point.