Replacement graduated mechanical stage for non-digital advanced Optika microscopes. Constructed for right hand access to both adjusting knobs and is calibrated in 1mm increments. Accommodates all slide sizes.Range of operation 30 x 55mmVernier scale reads 0.1mmThe graduated mechanical stage is compatible with the following microscopes:M100FLEDM100FXSelected other current Philip Harris/Optika models - please contact techsupport@philipharris.co.uk for model details(Not suitable for our range of digital microscopes).