Model created in Zbrush. It is watertight and ready for printing. Although the model has slight undercuts, it was created with molding and casting in mind.
Model is provided as a triangulated, optimized STL (2.5 Mil polygons). Default scale (although easily adjustable in any 3D software) is:
height 50 mm
width 33 mm
depth 4.5mm
volume 2.16 cm3