Snap Circuits Snap-to-Pin to Project Connectors | Expand Your with These 10 Snap-to-Pin Leads Integrate your Snap Circuit modules and components into your Raspberry Pi, Arduino, or breadboard project 2 leads EACH in green, yellow, red and black are 10 inches long, 2 white leads are 14 inches 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 Pin is crimped to the lead and covered with shrink tube for durability Elenco has been developing and delivering educational kits, tools and test equipment to universities, colleges and high schools for over 30 years