I really like the white crystal Scoop Free litter. My cats love it too! It has no fragrance for sensitive cats and it also does a great job of keeping the litter smell free. There's three to a pack and each box of litter lasts about 75 to 90 cleaning rounds. This is about 2 weeks for our two male cats. I love the white color as it makes it look very clean. I would highly recommend this litter and get this litter again as well!