I prefer using OKO Plus litter which is also made from wood. Instead of turning into dust when in contact with the cats urine, it will clump. Its not messy, very economical, flushable and less tracking compared to the pine wood which I have used before. When using the pine wood, I had to wash the litter box literally 2 times in a week however with OKO plus I only wash it once in two weeks. Oko plus is also odor control and after changing to Oko Plus I will never look at any other litter again.