Measuring just over 4" tall, this illuminating Diamond Ore replica is the perfect size for any space in your home, office or wherever you play. Full of detailed textures inspired by rock and crystal. The gem-like textures glow with the light of the LED, which has three different modes—a gentle, flickering pulse, steady illumination, and off, ready to come back on at your touch. The block is powered by 3 AAA batteries and the touch-activated LED features.