From the manufacturer ;
Scotch-Brite, the brand you know and trust, has created a line of effective cleaner products made from natural and recycled materials. Scrubbers are made with natural scrubbing fibers from the agave plant, a highly flexible, renewable resource that is used to make a variety of things, from sugar substitutes to tequila to ethanol. The Scotch-Brite Greener Clean Natural Fiber Non-scratch Scrub Sponges non-scratch surface is made from 50% natural agave plant. The sponge contains 100% natural materials, of which 23% is recycled paper.
Effective , efficient, lasts long AND helps preserve mother nature, what more do you need ? All you need to buy is 2 sponges to last about 1 - 2 years but the 6 back is great for if you want to stock up or you're using them for restaurants. They don't scratch delicate dishes and glasses as most brands are known to do. I have absolutely nothing bad to say about this brand.