Model 721 is a feral cat den that can be used as a cat handler for transporting animals or to provide a quiet place to hide within larger holding cages. These dens also provide the option of letting a cat enter the side port door by themselves for treats or to hide then quickly shutting the port door to trap the cat inside for transport without having to handle the cat directly. Features a locking side port door, front sliding clear or tinted plexi-glass door and comfort grip aluminum handle. This den also lines up with the rear sliding door of our 10W x 12H" and 10W x 10H" traps for easy transfer of trapped animals. These dens measure 17L x 12W x 12H" and are constructed of an easy to clean high density polyethylene. The Neihborhood Cats Den is an excellent tool to have for those housing or transporting feral cats.