Hi Power magnifiers have established a reputation for functionality, durability and outstanding value. At the heart of each magnifier is an aspheric lens designed to give sharp, low distortion images. The Acrylic lens material offers excellent clarity and strength. The stand version is available in a range of 8 powers and the lens is held in the correct working height to give a clear steady image. The 3x And 4x have a tilt facility and the 15x and 20x are adjustable.