The Saker Contour Gauge (10 Inch Lock) Profile Tool is a precise measuring and layout tool designed for use in home and garden projects. With an adjustable lock feature, this tool allows for easy copying of profiles and contours. Made of durable plastic, this 10-inch tool is lightweight at 14 ounces and does not require batteries. The Saker Contour Gauge is a reliable and convenient tool for accurately capturing measurements in inches, making it a valuable addition to any workshop or tool collection.