Contixo Circuit Builder Set and Game 86279098955 Rear Extender (included) provides protection

Rear Extender (included) provides protection for linkage

Durability and Wear Resistance: Engineered for use in rotary valves that experience continuous movement

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The reel's triangular shape allows it to remain steady on any flat surface as the cable and FIFISH are reeled in

stable audio via Bluetooth V5

Contixo Circuit Builder Set and Game 86279098955 Rear Extender (included) provides protectionContixo Circuit Builder Set and Game The Contixo CB1 Circuit Builder Set is an interactive STEM electronics learning kit that introduces children to the exciting world of electricity, circuits, and engineering through hands on experimentation. Featuring 22 snap together electronic components and over 500 exciting experiments, this educational kit allows kids to safely create working circuits with lights, sounds, motion, and projection effects.