We sell a lot of products. In our warehouse in St. Catharines we stock over 11,000 products. Try to keep track of that! Every single product we sell comes with a guarantee. Fuller Brush Company used to have a floor care line called the Guarantee Floor Care System. Their guarantee was simple- if the product that we sell you doesn’t work to your satisfaction as we promised it would, simply return the unused portion of the product and we will exchange it for something that will meet or exceed your expectations. If we can’t do that we will give you your money back.