No more stinking Guinea pig cage..love love this product. I am happy tat I found a better solution. I have two litter boxes for each of my piggies and I keep hay grass in the corner of the litter box filled with yesterday's news litter and for 3days it remains fresh and I remove it and fill it back. Its safe and also doesn't contain any chemical substance which will make my piggies skin dry. Nothing wrong in trying once Bcoz if it works then u won't have stinky cage around u anymore.