The Base kit is the perfect starter set for exploring electronics: its core electronic blocks - power, switches, lights, buzzers and motors - let kids build dozens of series- and parallel-circuit projects while mastering the fundamentals of circuit science. Includes 28 pieces, with 10 electronic blocks, 17 other accessories and 1 instruction book, with 8+ projects and over 90 unique circuits to experiment with. Size: 36 x 30 x 5 cm. Ages 7+.