This is the Vault Lens. Everybody knows the state of agitation that comes up when you are flying your expensive go pro exposed on your mini quad ripping along 30cm over the ground or 20m up in the air. Because at least I know this feeling very well I designed the Vault Lens. It will effectively protect your Gopro Lens from scratches and crashes without the 40$ prize tag that manufacturers charge. UPDATE 25/08/15: The Vault lens guide has been uploaded. Take a look at http://www.firefly1504.com/vault%20lens%20guide.html Check out my instagram for latest info and designs. https://instagram.com/firefly_1504/Detailed instruction on what you need and how to assemble the Vault lens are published on the firefly1504 website. Take a look at http://www.firefly1504.com/vault%20lens%20guide.html Have fund building it.