Acrylic Clay or Ceramics Roller & Flat Surface Plate
Size: roller is about 20x2cm; rectangle is about 14.8x10x0.35cm
Cleans up easily, and is lightweight and easy to store.
There are no instructions included with this tool, so it would be best to google how to use the set. There are many ways to use the roller & plate set, so it will be according to your project.