I have no qualms in recommending the above product, having previously offered the above product to my cavies, Joey&Gizmo. However, similarly, I have no apprehension in recommending a product known as "Readigrass" - which was originally, and continues, to be manufactured as a product for horses. However, "Readigrass" is widely used in the cavy community. Nevertheless, both products have been feed to other domesticated species without concern. I find the most appealing aspect of the above products is the minimal amount of dust they contain.
In addition to the above products, there are several varieties of dried grass currently available in the animal retail industry. Certainly, there will be a number of these varieties that will, likewise, have the same appeal.