[moongirl]

My neighbors' rubber mulch is a reddish brown material and looks like chopped up tires. The chunks are different sizes and shapes. Don't know if there are different types. It was put down by a "supposedly" professional landscaper along with the "poured" curbing. Almost all of it has washed from his side yard to ours during the last couple of rains we've had. And the rubber smell is always there. Sounds like from other posts, there may be some types/brands that don't smell/float.