A treatment agent for animal fiber protection which comprises an aqueous solution containing divalent metal ions or a divalent metal salt. The container includes a molded inner layer formed from a plastic material, the inner layer having a vertical length and a carbon-treated inner surface; and a molded outer layer formed from recycled plastic that is substantially coextensive with the inner layer. A second gain constant is adjusted with the brush in contact with the magnetic head until the signal once again achieves unity gain. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.