Polyester Happy birthday decor: 1 piece of happy birthday backdrop, approx. 70.8 x 39.3 inches, with 19.7 feet of white rope; Large enough to decorate the birthday theme party, present a happy birthday atmosphere, welcome friends to join the happy birthday party Colorful and varied patterns: as the picture shows, the happy birthday word is in the middle, announcing the theme of the party, complete with the cake design elements that are essential for a birthday, as well as a variety of colorful balloons and gift boxes, at the top are the national flags of various countries; Colorful colors and various patterns give you a lively decoration experience Easy to assemble: our adorable happy birthday background has 4 copper holes in each corner, coming with a 19.7 feet white rope; You just need to thread the white rope through the copper hole and fasten it, so it will not easily fall off or loose, which is convenient and easy to operate Wide applications: this colorful happy birthday background is the ideal decoration for celebrating birthday parties, suitable for indoor and outdoor occasions, such as hanging on the wall indoors to enjoy a lively party, hanging on the tree in the outdoor and garden, inviting friends to participate in outdoor parties, taking a photo together in front of a happy birthday background Practical and necessary for birthday: the banner of happy birthday theme is made of thick polyester fabric with vibrant prints, these prints are clean, odorless, and can be washed after a birthday party before being stored and reused for the next birthday, practical and durable