The ShadeWave Shade reference is a hand-held reference target that has been custom manufactured by ShadeWave Technology. The tri-colored target colors have been scientifically formulated for consistent shade results using the ShadeWave Dental Shade Matching System. It has an optimal length handle for user comfort and an angled end designed to put it at the correct angle to your camera. The Shade Target can be wiped down with alcohol or glutaraldehydes. Do not cold sterilize or autoclaved.