It's an out-of-this-world take on the Skill Builders readiness sets! Kids learn about the mysteries of outer space with age-appropriate activities and 3-D pieces for enhanced hands-on learning. Learn the order of the planets, make your own rocket countdown and more. Includes a full-color write-and-wipe guide with worksheets. Package size: 10.6 x 9.8 x 4 in. Ages 4+.