. "Yet further, it is an advantage of the present invention to provide a pneumatic blowing unit that is adaptable to blow many different types of materials, such as bark, mulch, fertilizer, compost, wood chips, soil, peat moss, gypsum, dry grass clippings, leaves, seed, herbicide, pesticide or other chemicals, gravel/stone, processed straw or hay, sawdust and any combination thereof." . . . . . . . . .