The three biggest U.S. airlines - American, United and Delta - will no longer allow hoverboards on flights.<br />The ban extends to both carry-on and checked luggage, so if you were hoping to bring your battery-powered rolling contraption home for the holidays, think again.<br />United's ban on the devices is effective immediately, Delta's begins on Friday, American's on Saturday.<br />"Poorly labeled, powerful lithium-ion batteries powering hoverboards are the issue," Delta said in a statement.<br />"Delta reviewed hoverboard product specifications and found that manufacturers do not consistently provide detail about the size or power of their lithium-ion batteries."