Super Hero Balloons (16 pcs) Bam Zap Ka-Pow Sound Effects by Nerdy Words (Comic Book Colors)<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>12" (30 cm) latex balloons， helium quality. Approximate float time: helium 8-14 hours， air 5-7 days. Ships uninflated.</li><li>Set of 16 balloons (black， blue， red， yellow).</li><li>Printed (one side) with a comic book sound effect design.</li><li>100% biodegradable.</li><li>Perfect for super hero parties， comic book gatherings and conventions</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51iLeuuggvL.jpg" noproxy>