“So easy to change and clean up. Close up the old box, put the lid on and throw the whole thing out! Open new box, set up box, pour in litter and done!! Only every 3 or 4 weeks! No mess, all clean! Goes for 3 or 4 weeks with ABSOLUTELY NO SMELL!! Easy scooping each day, give it a stir and done! LOVE this litter and litter box (fine grain)!! Cost is WAY LESS than buying and changing out litter every other day or every week and no more messing with buying those bags to go in the box, etc. Best kitty box concept ever invented!”