500g (17.6 oz) lasts apx. 6-8 months* includes 1 sponge	800g (28.22 oz) lasts apx. 8-12 months* includes 1 sponge	4kg (8.8 lbs) lasts apx. 12-24 months* includes 5 sponges

                                         *depends on usage (shelf life is unlimited)

WHY DO YOU NEED EXTRA SPONGES?
Because you probably don't want to clean your kitchen with the same sponge you use to clean your bathroom.

extra sponge	3 sponge

These commercial grade sponges are extremely rugged and long lasting. They foam more easily and use up much less of the Universal Stone than regular sponges. For orders to Canada, go to universalstone.ca.

To order this economical, highly effective, all-purpose, universal cleaning stone in the United States, scroll down.