I have found the most amazing cat litter that I have ever used. It is made from 100% kiln dried pine and it is pelletized with no added oils or fillers. My cat just loves it. I have one cat and a 45# box will last approximately 6 to 9 months. You only use about an inch of litter in the pan at a time and you scoop the poop and flush daily leaving the urine to evaporate with no smell what so ever. I clean my box approximately once every three weeks as the pelletts start to break down turning back into saw dust so there is not much tracking. This truly is an amazing product.