The ultimate sensory experience awaits you and your kids! With flashing lights and popping noises, these pop tubes have the perfect balance of brightness, sound, rigidness and mouldability - about that, these tubes can be linked, shaped and pulled back apart as many times as you like! Simply pull the battery tab to start the LED display and watch the tubes flicker for many hours! But don't worry, the pop tubes can still be popped and shaped without the LEDs on!