This part is part of the Open Algae Farm project which you can find out more about here: http://openalgaefarm.netai.net/ . This part is designed to link 5/8" vinyl tubing together for the purpose of farming algae for biofuelThis part was printed on a Printrbot Simple Metal. A few things to note for printing is that the part won't be waterproof so it must be dipped in primer (it works really well). The part should also be scaled up based on the flexibility of your tubing.