The two interconnected rubber balloons system is a demonstration widely used to show the effect of surface tension; however, the nature of the rubber skin, sizes of the balloons limit the ability of this demonstration. In this research, I measured the circumference and pressure of balloons for the calculation of surface tension. It was found that the demonstration can be done between circumferences of 30 cm to 50 cm for the party balloons to show the effect of surface tension as explained by the Laplace-Young equation.