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4M Smart Circuits Science Kit

Original price was: $19.99.Current price is: $15.99.

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SKU: IKCUK15154656 Categories: ,

The little blocks can be turned into more than 10 different smart circuits including an intruder alarm metal detector and coin card Change the input trigger and logic control to make your own gadgets that perform various functions Requires three AAA batteries not included 5yr plus

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