A rubber mooring buoy, used for small boats.
This is a relatively low-poly model intended for games, with only 23, 641 triangles (and most of those are in the rope). However due to the care taken in texturing, it looks realistic enough for animation work.
In order for the materials to work properly, the 'textures' folder will have to be placed in the same folder as the blend file.
All textures are 2048 x 2048