This is PBR Rocks pack created in Blender. It includes 4 different models in real world scale (10cm-13cm). 

The product has 794 polygons.

It comes in following formats:

.blend

.fbx

.obj

The blender file has the shaders set up, so it's ready to render using Cycles. The title image is not included.

It also comes with set of 4K .png maps:

base color
roughness
normal