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The Bicep Builder is a multi purpose upper body exercising device. The device is comprised of three total parts. The two handles and the rubber string that provides the tension that exercises the upper body. The rudder string has to be sent from earth and the astronaut gets to decide the amount of tension that the string has. To build the device all you need to do is get the rubber string put it through the handle's holes and tie the string and do this with the other side.
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