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Umbrellas are common in our life. On rainy days, many people hold them to prevent     . But it’s not easy to hold an umbrella   there is heavy rain and strong wind. And it’s harder to make a phone call or ride a bike with an umbrella in the  .  An American named Alan Kaufman and his company spent six years     a hand-free umbrella. At last they made it.
They called it Nubrella. Just touch a button(按钮),and the Nubrella will open   .With the help of its “shoulder support(支撑物)”，the umbrella can rest on the user’s   . So the user needn’t   the umbrella any more. He can walk with hands        even in the strong wind.
The hand-free umbrella is ＄59.94 each. People all around the world like it very much. Because of this    invention, they can use their phones to talk and send short messages in the rain now.   in the rain under a Mubrella is really cool, isn’t it?