4 years & up. Witness one of nature's most spectacular transformations up close with the Butterfly Farm. Each Butterfly Farm kit comes with a voucher that you can redeem to receive 5 baby caterpillars, their food, and a Chrysalis Holding Log™. After you transition the caterpillars to the Butterfly Farm, watch them go from caterpillar to chrysalis to butterfly! Please note that live caterpillars can only be shipped to destinations within the Continental US and Alaska. Caterpillars cannot ship to Hawaii, Puerto Rico, or Canada. Pop-up habitat measures approximately 12"L x 12"W x 12"H.