Brand New 199 Kinds Compound Mode Switch Circuits Electronics Block Kit Electric Educational Assembling Toys for Kids HTRC Its anti-skid tires and high-capacity

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Brand New 199 Kinds Compound Mode Switch Circuits Electronics Block Kit Electric Educational Assembling Toys for Kids HTRC Its anti-skid tires and high-capacityProduct Description Create Working Electronic Circuits Switch Circuits comes with over 30 components to create 199 different electronic projects. The pieces, which include snap wires, slide switches, an alarm circuit, a music integrated circuit, and a speaker, snap together easily on the included plastic grid no soldering required. Each piece is numbered and color coded to make identifying them easy. These components combine to create working circuit