We have met them at the expo we attended earlier this year. Basically, all the stuff is... is mulch that is organic and incorporated w/horse manure. They have heated it up and composted it to create a nice mulch product. Horse manure is the best thing you can use on your gardens and beds... only the older more decomposed manure however. It is very dark and decomposes to a rich black color over time. So, just a little inside info. Nothing more than someone who capitalized on a great concept of incorporating a soil into a mulch idea from that basic process.