This format includes a litter absorbent layer that holds urine. Wrapped in a blue bag, its installation is done very quickly (15 to 20 seconds). We put the bag into the litter box, it is unrolled and louvre by pulling a marked string. There is more to bend and adjust each side around the tray. When the litter is dirty (after 6 to 7 days in my case, while the Amazon product page ad about 10 days), we find the same comfortable operation of a garbage bag. Is raised sides, pulling the tongue which retracts the bag inwards. We just throw it in the trash chute. No need to thoroughly clean the contents of the bin and empty it with a shovel. The duration of the operation does not exceed 15 seconds.
Usually I buy classic litter Catsan as those of other brands do not like my cat (especially those whose stones are too small and stick). We find in this kit of 2 bags litter the same quality and low odor.
Unfortunately, the size of the litter bag looks a bit too tight for my tray (slightly higher than those in standard format). Half the time when my cat scratching, one of the sides of the bag comes off and falls into the litter, which displeases the pet.
I recommend this innovative litter kit if you hate the installation steps and tank cleaning and prefer a litter ready in seconds. Finally this format does not cost much more than conventional bedding of excellent quality Catsan.