Not sure how I lived without this ! 2 cats that use the litter box in the basement..I used to carry up the used litter in bags and one day it broke through all over the staircase . With this multi cat twister my life is so much easier. The bags are super strong, they can hold 17 pounds of litter and yes, I have tested this and they don’t break!! I also work out in my basement and there is no cat poo smell….I scoop the litter and twist the bag with the pedal, and the odor is sealed…..this means so much to me , I so dislike the odor of cats …..now we all cohabitate in peace and harmony 🐈🐈⬛ Love and highly recommend this product for anyone with a cat or mult cats