Opendive for virtual reality

The press consists of three parts, a central body, a bracket lockable door phone and two lens case. It 'a project that was inspired dla http://www.durovis.com/opendive-howto.html team.
You can find these links lenses or similar: http://www.ebay.it/itm/10-Pcs-25mm-x-45mm-BiConvex-Lenses-Only-for-Google-Cardboard-Virtual-Reality-VR-/201301560439?