Can't stand scooping your cat's litter box but can't afford those pricey robot litter boxes ? I have a knock off brand that will only cost you 50. Used for about 6 months but my cat doesn't care for it ( she beats it up Everytime it rotates lol). This litter box will rotate after each use to remove the waste into a plastic bag ( we used 4 gallon trash bags they worked great) all you have to do is change the bag when it gets full. It has sensors to sense your cat approaching so it will stop rotating if the cat gets too close. I have noticed light weight litter works better than regular litter. It will also tell you your cat's weight . I have a downloaded manual for it as well.asking 50 or best offer paid 250 about 6 months ago.