An invaluable tool to any mosaic artist! This handy value finder identifies the value of individual hues. The uniquely shaped contours surround the hue/color you need identified for an accurate reading. Glossy heavyweight paper. Also includes a handy guide on the back to raising or lowering the value of a hue. Measures 4 in. x 6 in. (10.2 cm x 15.2 cm).