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Sci-Fi Tube Electric Circuit Experiment
Enjoy hours of fun and learning with the Toysmith Sci-Fi Tube. Activate this tube's sound and light effects using only touch with this human-powered tube. Touch both silver contacts at the same time to complete the circuit of the Sci-Fi Tube. Join with friends and family to create an even bigger circuit. Batteries are non-replaceable. This set is recommended for ages 5 years and up.