These 17" purple latex balloons come with built-in helium valves that automatically seal during inflation, eliminating the need for hand-tying, stringing, or sore fingers. Each valve includes 4 feet of ribbon already attached, making decorating quick and effortless, and the valves are designed to work with most standard helium inflator nozzles. Perfect for outdoor use at car dealerships, home builders, grand openings, or any large-scale event, these balloons provide vibrant color and professional-looking displays with minimal effort.