It does not come with a frame. binocular lens: 3 x working distance: about 13cm lens material: PXM optical resin weight: about 14gZoom magnification (optical): 3xLab frame that adopts the optical resin of Eschenbach's original development material [PXM], with all the transparency, purity, hardness, resolution required for lenses important for the loupe, lab series lens. : Magnification is three times in both eye types. Support for lab clips, lab frames, and lab heads.
