Punch small holes on the paper hemisphere domes, assemble, and project the image with the lamp provided. Create your very own starry sky in your bedroom! Invite your friends and family for the star show, they'll be amazed. Contains 1 set of projection domes (both Southern and Northern Hemispheres), one-touch lamp, a set of adhesive stickers & detailed instructions with star charts of both hemispheres. (4 AA batteries required, not included.) Ages 8+.