We recommend:

• Use a nylon coated plier to remove the demo lenses.
• Remove any residue off the nylon plugs, bridge pins, screws and end pieces, taking care not to damage them.
• For each model axis and hole position please visit: Rimless Measurements
• Use the original nylon plugs supplied to assemble the correction lenses or sun lenses.
• Assemble all the components using a plier with plastic inserts to prevent damaging the lens.
  To view the assembly guidelines please visit: Rimless Assembly

We do not recommend using CR39 or a 1.56 index lens.
We do recommend using a 1.59 polycarbonate or 1.61 MR8 lens as standard for all rimless frames.
Care should be taken if using acetone on a 1.59 polycarbonate lens.