Package Includes: Our pastel happy birthday balloons set come with 13 x pastel HAPPY BIRTHDAY letters (16 inch), 1 x 18 inch pastel blue star balloons, 1 x 18 inch pastel pink star balloons, 3 x 10 inch pastel blue star balloons, 3 x 10 inch pastel pink star balloons, 1 x white ribbon, 1 x straw. Premium Foil Material: Our happy birthday banners are made from top-notch aluminum foil, ensuring durability, sturdiness, and a shiny appearance without air leakage.Make your party celebration easy and fun. Simple to Use: Inflating the pastel foil letter and star balloons is quick and easy with the provided straw. The happy birthday foil balloons feature a self-sealing valve for effortless inflation and deflation: simply inflate them to 92% capacity using a pump to allow for complete expansion. Once inflated, use tape or the included ribbon to hang the birthday balloons on walls, windows, curtains, ceilings, in the backyard, or anywhere else you desire, indoors or outdoors.