Cattle move through alleys easier, quieter and with less prodding and stress if they cannot see feedyard crews outside. Several types of "blinders" are available for snakes or processing allys. Designs and materials can vary, but the basic concept is to limit the side-to-side view of cattle in the alley while allowing workers access to push animals along when needed. Good lighting and a clear forward view hlp encourage cattle to move ahead toward the processing chute.