A batting cage (or tunnel) is an enclosed area for baseball or softball players to practice the skill of batting.
The optimal material for batting cages is netting, and they are typically rectangular in shape. Chain-link fence is not required but can be useful to enclose the netting to prevent vandalism. However, this material is not suitable for the primary impact layer because it will warp the fencing and damage balls. The ideal netting for a batting cage is either diamond- or square-shaped.[1] Both types of netting have their advantages and disadvantages.