This is the first pre-order I'm creating for the fins I've been making. So far they've all been made with a budget 3D printer. The designs are all performing excellently, so I'm confident they're ready for the next step which is what this is for. If I can sell a thousand pre-orders I'll be able to afford to get the molds machined in order to start manufacturing the fins. I have a facility lined up, they're here in California and they've been making top quality fins since before I was born. Your fins will be produced in fiber filled nylon which will make for very durable, strong fins that will last you a very long time.