Noves BINOEschenbach's noves BINO are magnifying readers with prismatic convergence support for magnifying requirements of up to 2. 50 X. The lenses have a subtle, appearance as they have a uniform thickness of 4 mm regardless of the optical power High precision diffractive nano structures on the inside of the lenses protect against damage by mechanical influences and dust The half eye design facilitates orientation above the eyewear Weighs only 18 g The spring