STL File (and 3D Model) Required for 3D Printing

I need an STL file to 3D print a component. It's 2 pieces of plastic with 2 hinges and a closure (preferably magnetic but this is a sample so anything more simple which can be 3-D printed is fine).

This is just a sample but if the job is well done I have more to make and I would be interested in getting a production copy made which will be obviously more sophisticated and I would pay a higher fee.

The image is just for initial reference. I would send photos and give more details in a video call.

I need this asap.