Kit contains plastic bottles, cork stoppers, non-toxic acrylic paint and white glue, construction paper, precut cardboard tubes and circles, paintbrushes and instructions. Alka-Seltzer® ‘rocket fuel’ not included. Adult supervision suggested. Ages 8 and up. Launcher size: 6-1/2″H x 6-1/2″ diameter; rocket size: 1-1/2″ x 6″.