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 dinosaur birthday banner , 8 pieces of large Dinosaur theme foil balloons, 1 set of 5 mini dinosaur foil balloons , 25 light green and 25 dark green latex balloons , 10 Pcs 12-inch green agate balloons , 4 pcs tree leaves , 3 pcs green foil curtains , 1 set of 6 green paper fan flowers, 1 pump and 1 roll of 100 pieces of glue