The balloons are crafted of durable and strong latex; banners are made of sturdy heavy duty card stock paper and can easily be reused for multiple parties. The banners and balloons are extremely easy to assemble, it would be a happy family craft to assemble with your kids and decorate the party. , , PACKAGE INCLUDES: 1 Pc Unicorn Foil Balloon, 1 Pc Rainbow Foil Balloon, 25 Pcs Latex Balloons (Pink & Purple), 3 Pcs Star paper banner, 4 Pcs Star Foil Balloons, 1 Pc Happy Birthday Letter Foil Balloon (Pink Purple and White)