3'x5' Nylon Happy Birthday Balloons Flag Made in the USA by Flags Poles And More 100% US Made with the material even sourced in the USA!  Top of the line 3'x5' Happy Birthday Balloons Flag by Flags Poles And More Our flags are meant to last. We use a combination of the highest quality components and state-of-the-art manufacturing to give you the best looking and most durable flags in the industry. All labor and material are certified Made in the U.S.A. This flag CAN NOT be purchased in Big Box Stores.  There may be cheaper flags but you get what you pay for. This flag is top of the line. Our poly sateen heading is the whitest, strongest in the industry, we use a heavy nine ounce polyester sateen material. Construction begins with finest fabrics and threads available. Fly hems are finished with 4 rows of lock stitching.