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Newton's Gravity Glass - 3 Minute Purple

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Fascinating and elegant, this beautiful hand-blown glass sand timer features double action powered by gravity. When you flip the Newton's Gravity Glass over, the hourglass within the liquid-filled glass cylinder moves upward as the sand within it falls. The sand takes approximately 3 minutes to flow to the bottom of the hourglass. This is an awesome desk accessory that will entertain you and your co-workers as you try to figure out how it does that double gravity thing!

Item #:

2165

Our Price:

$17.99 $14.99

Quantity:

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Details

9.75" tall x 2.5" diameter, hand-blown glass, liquid-filled outer cylinder, glass hourglass with purple sand. Time is approximately 3 minutes, but may vary.