Dental Power Dental Ultra-Light Clip-On Optical Loupes with 2.5 X 360-460mm Magnification and Ultra-Wide View Clips to Any Glasses | Gallilean Optics, Black Color, Model CM250

the build quality is fair.the tightening screw that conrols the i.p.d does not control the lens

The loupes worked great but put too much pressure on my nose or slid down.. and eventually I got a headache by the end of the day.. unfortunately had to return.