Backyard chickens should have constant access to a dust box. It's a natural, non-polluting cleaner. A dust bath encourages ruffling and preening. Both of these are necessary for healthy chickens. Ruffling dislodges dirt, dander, and feather flakes. Preening releasews new oils that spread under the feathers to keep them in good condition and waterproof. Lumino Dusting Bath Powder is a blend of specially selected earth minerals, clay, washed sand, dust, oyster shell powder, and crushed alfalfa meal. This fine loose mix is easily fluffed under the feathers. Providing bathing facilities for the "ladies" couldn't be easier. A heavy-duty plastic tub with a seal tight lid makes an ideal box. It can be moved around easily, left open on sunny days, and closed or moved into the coop during inclement weather. Be sure the box or tub is sturdy, as the ladies often perch on the sides waiting for their turn.