On the Ball. Inspired by the horizon- indicator instrument found on airplanes, C.H. Hanson's new Precision Ball Level uses a weighted floating ball to find level, plumb, and any angle or slope in between. Unlike on a bubble level, all these readings are lined up through the cross hairs of one central window. Turning the tool on its side lets you use it as a bull's-eye level, too. The 24-inch level costs $40. C.H. Hanson, 800/827-3398. www.chhanson.com

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