Hand magnifier 30x21mm. Comes with box. You can attach a cord to the loupe. Folded in: 38 x 26 x 18 mm Lens diameter: 21mm Working distance: 18mm Magnification factor (measured): 14x Box: 59 x 42 x 23 mm This loupe has a connection point for a loupe cord neck strap. Prevents loss! See also our loupe cords.