RV Designer Bubble Level Eagle 5" Wing Span. Use the bubble as a leveling guide. When the bubble is perfectly centered between the two lines that means the surface is level. If the bubble is closer to one line than the other then the surface is not level. The E405 Bubble Level features a peel and stick application. The eagle level has a wing span of 5". There are two stick-on levels per package. Features of RV Designer E405 Bubble Level Eagle 5" Wing Span Ensures surfaces are evenly horizontal or vertical Peel and stick application Use the bubble as a leveling guide When the bubble is perfectly centered between the two lines that means the surface is level Dimensions: 5" Wing Span Package Contents: RV Designer E405 Bubble Level Eagle 5" Wing Span RV Designer E405: Bubble Level Eagle 5" Wing Span