9V Battery. The model comes in a single piece. This detailed model was created in SolidWorks. It is based on a real object, and is provided in real scale (metric units). Materials were defined using Blender. Several file formats are available. Being based on triangular polygons, this model is particularly good for 3D printing. Texture and UV mapping are included. They are intuitive, and easy to edit. Promotional render images were made using NVIDIA Iray. Lights, shaders and cameras are not included.