Use these acrylic radius gauges to quickly measure and lay out inside and outside radii from 1/8 inch to 2 inches. Each gauge is CNC machines from 3/16-inch acrylic with polished edges. Includes the following sizes: 1/8, 1.4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/4, 1-1/2, 1-3/4, and 2 inch. Made from 3/16-inch-thick clear acrylic. Each gauge is clearly marked for easy identification. Overall sizes range from to 9 inches down to 3 inches. Can be used when turning spindles, duplicating moldings or checking/creating rounded corners