Snap Circuits PRO SC-500 Electronics Exploration Kit | Over 500 STEM Projects | 4-Color Project Manual | 75+ Snap Modules | Unlimited Fun BUILD WORKING CIRCUITS Build over 500 Exciting electronics circuit projects with 75+ electronic components SUPPORTS a vigorous STEM / STEAM curriculum NO SOLDERING - NO TOOLS - IT'S A SNAP ~ Snap Modules require no tools and ensure solid electrical connections LEARN BY DOING Build working models of a Rhythm Swinging Meter, delayed light, burglar alarm, radio, parrallel circuits and so much more. More than 500 exciting projects in all with included 75+ snap together parts. Includes everything found in SC-100 & SC-300 DESIGN electrical circuits using the knowledge gained from building over 500 circuits found in the illustrated instruction manual AWARDS ~ Snap Circuits brand kits have received the following awards: The National Parenting Center-Seal of Approval, Dr. Toy 100 Best Children's Products, Dr Toy Best Educational Products, STEM Approved SNAP CIRCUITS provide students ages 8+ with hands-on experience building models of working electrical circuits CIRCUITSAFE TECHNOLOGY Is only found in Snap Circuits brand electronics education kits. ~ SNAP CIRCUITS, ELECTRONICS EXPLORATION KIT, CIRCUITSAFE, LEARN BY DOING, and ELENCO are trademarks of Elenco Electronics, Inc.