Trial Lens Case BK F

Trial lens case for fine adjustment
Practical add-on case containing 12 coated trial lenses for spherical and cylindrical fine adjustment.

Important note
The trial lenses in the BK line have a rim diameter of 38 mm (lens diameter 21 mm). Suitable for Universal Trial Frame UB 3, UB 4, UB 4 höhenverstellbar, UB 6 and Half-eye Trial Frames.