Green Science Potato Clock

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The 4M Potato Clock teaches young minds the value of green energy in an illuminating way. The Potato Clock uses a pair of ordinary spuds to power a digital clock. This kit includes a digital clock, wires and prongs; two potatoes are all that's needed to create a working clock. This kit is ideal for young science enthusiasts, and offers a valuable lesson on the transformative power of green science. Detailed assembly instructions included. No batteries required. Barcode 4893156032751 Weight & Dimensions 8.50 x 2.50 x 6.75 Inches; 235g WARNING CHOKING HAZARD - Small parts Ages 5+ Show more