This 4-diopter and 12-diopter Add-X Lens snaps into the 3-diopter primary lens. When added onto the permanent 3-diopter lens, your power increases to 7-diopter and 15-diopter.

• For Waldmann Omnivue, SNE.
• 3.63" x 2.0"
• 12-diopter inset is 1.25" in diameter.