The BüD'z metal exercise pen gives your dog a safe play area indoors or out. Its 8 sturdy steel mesh panels set up easily and pair with a BüD'z crate of the same size. • Sturdy steel mesh keeps the space clearly defined • Double-locking access door keeps your dog secure • Folds down for easy transport and storage • Connects to a BüD'z crate for a bigger play space More room to move, safely.