Adjustable hook-and-loop fastening Retractable extra double lens behind the fixed lens Swivel lens Magnifies 4x
Easily adjusts to all head sizes using the hook-and-loop fastener. Also suitable for wearers of spectacles. 4 magnification factors: default = 1.8x and 2.3x. By moving the microscope magnification factors 3.7x and 4.8x can be achieved. The lens assembly consists of a fixed lens, a retractable double lens and an additional swivelling loupe. The visor screens off outside light interference.