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this balloon helicopter is perhaps the greatest flying object. this is ready made. there are
three blades, a rotor, a balloon and a socket. this is the rotor with a whistle. hear the
whistle and enjoy. this is the blade. you can see that the air will enter through the
pin part and go all through out and come out from the hole at the tip. there are 3 blades
which will be attached one by one to the rotor and the rotor has the whistle in it. you can
also see that all along the length of the blade, there is a kind of tube which ends
into a hole at the tip from where the air exits. this is the socket, attach the blue
socket to the balloon and blow up the balloon and now fix the socket with inflated balloon
in the rotor. now you just have to leave it in the air and see the helicopter going up
whistling, and coming down. enjoy this amazing toy once again.