Potato Clock jigsaw puzzles Get ready for 4 cool

Get ready for 4 cool trucks: a fire truck

Squeeze-activated squeaker adds an extra element of surprise

Pile up the pups

bring home this deep sea friend today

Hone those rationales aptitudes

Potato Clock jigsaw puzzles Get ready for 4 coolThe 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