The compound eye structure of insects is unique, and in some ways superior to human eyes. Go really bug-eyed seeing for yourself with this set of 3 intechangable lenses, viewing tube and retainer ring. Lenses (ommatidium, ocelli and elongated) are described with helpful information and will surely change the way things look! Ages 3 and up. 961$3.99 This is the Insect Lore Store - to see all the lore, bug fun, and insectucational stuff insectlore.com has to offer, go here. For friendly customer service, let us help you via our form at insectlore.com/customerservice, or call Insect Lore at 1-800-LIVE BUG. Order our products in the EU at Insect Lore Europe.