Pick up this great gift idea. Build some bright ideas with this ingenious illuminated set of interlocking construction blocks. Just add blocks to the base (battery or usb powered) and each one lights up when connected! Compatible with other construction block systems of the same size this set of 102 blocks will inspire endless creativity in kids and grown-up geeks alike. It makes amazing sculptures of geometric light in four modes (always on 15 min. auto-off flashing and fading). Build your own custom nightlight skyscraper glowing robot or anything that lights up your imagination. Made in China. Essential Details: Ages 3+ Made from copper electrical components stainless steel ABS plastic Measurements 11.5" L x 10" W x 2.75" H in packaging; 36 1.25" L x 1.25" W x 1" H blocks Notes: Includes: Building blocks (36pcs or 102pcs) 1 base USB cable DC cable 3 AAA batteries Compatible with Lego Duplo blocks. WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.