Red Rocket has solved a pain point that millions of cat lovers endure daily. In 2018, the patented Kitty TWIST’R® was born, making disposal of soiled cat litter odor-free. Guaranteed. Each refill bag holds up to 17lbs of litter and that’s a LOT of litter! Fully formed bags, no wasting time and money to pack litter in those small plastic bags any more!