This OptiVISOR assembly comes without lens plates; holds one interchangeable, lightweight glass lens plate. OptiVISOR lens plates (available separately) are ground and polished to prismatic optical standards to provide clearer, sharper optics. The ever-popular OptiVISOR® is the first choice of many jewelers. Self-locking dial adjustment provides a good fit on any size head and over eyeglasses. Genuine leather comfort band makes OptiVISOR more comfortable than other magnifying visors. Adjustable tension pivot assembly keeps visor in desired position.