Step 4: step 3: mount the lens to your goggles
1: Roll the sugru into thin sausages.
2: Place the sausage around the rim of the goggles.
3: Gently but firmly press your prescription lens onto the sugru making sure that there are no gaps.
4: Gently press / rub the sugru to get a good finish. Use soapy water for a super smooth finish.
5: Leave to cure.
6: Go swimming :)