This litter is made from all-natural corncob particles that clump instantly and trap odors immediately. It absorbs more than four times its own weight but is half the weight of clumping clay litters, which makes it easier to carry and dispose of used litter. Add all these factors up and you have a litter that lasts up to three times longer! Will not harm toilets or septic systems with clogging or residue build-up. It's earth-friendly and cat-friendly organic and non-toxic. The added fragrance of lavender is known for its soothing, relaxing effects. Bag weighs 7.0 lbs.