Animated Electronic Blue Morpho Butterfly in a Glass Jar - Tap to Activate - IlluminatedBlue Morpho Butterfly from the Science Purchase Butterfly collection The Glass Butterfly Jar measures approx 6. 5" x 4" x 4" Takes 3 x AAA batteries (Not Included) Beautiful illumination makes the jar and it's butterfly visible in the dark. Simply tap the jar to activate the butterfly's realistic action. Ambient sound may also make it flutter! Ever dreamed of keeping a butterfly in a jar forever? Now you can! Open the glass jar and activate the switch