Cattle Alleys are designed to keep your cattle secure, in line and moving towards the cattle chute. Cattle alley no-backs prevent the animal from moving backwards which will keep the animals moving forwards toward the squeeze chute. Cattle alleys can be straight, curved or adjustable to fit the width correct width of the size cattle your working. Cattle will often stop or try to back up when they see the cattle chute. So it's best if the cattle alley is curved at least 15 to help prevent from seeing the cattle chute and stopping. Adjustable cattle alleys allow you to adjust the width of the cattle alley to fit the width of the animals that will be traveling through. You need to have the cattle alley as narrow as possible to prevent the animals from turning around. LivestockShed.com carries the full line of Sioux Steel and Powder River cattle working equipment alleys.