This piece of art displays texture very well. You can see all of the ridges and you can tell how it feels. The straight parts on the piece are clearly smooth. Where the straight pieces meet are very pointy, creating a harder texture.
I would use this hand out as a viewing activity. For older kids I would put a blank beside the examples and provide a word bank. With younger and even older kids I would bring in materials and examples of these textures represented so they can get a real experience with it.