Has anyone tried these grass pellets?

[Teejay]

http://www.ebay.co.uk/itm/Rabbit-Guinea-Pig-Horse-Grass-Pellet-treats-/220887967724?pt=UK_Horse_Wear_Equipment&hash=item336df2e7ec

Look like they might be a nice treat while grass is in short supply through the winter, but I just wondered what the general opinion on them was?

Tracey x

 

[Skelly]

just bumping this x

 

[EbonyRaven]

We have grass cubes here in our Walmart. And it makes our guinea pigs stomachs upset. But that just might be ours.