Anyone who travels a lot knows the stresses of guessing how much their checked luggage weighs. I reviewed the Balanzza Luggage Scale a while back, and it now looks like it has a possible direct competitor by the name of the Gravity Ruler. Sporting a very simple design mechanic, the Gravity Ruler is not exactly a scale but more like an estimate in the way it gauges the tension of its bungee cord to see just how heavy your baggage is.
The idea was set into motion by Marcella Maltese and Lin Wei, who are currently shopping their concept to manufacturers around the world. Great job you two!