Mini Step Gate With Pet Door, Quick and easy setup;Just 18 inches high and perfect for puppies and small breeds;Durable, lead-free, non-toxic, chewproof all-steel construction;Small pets pass through pet door, while you step easily over the gate;Expands from 29 to 32 inches wide. Includes a 6 extension to create a 38-inch expansion. 18 H x 29-32 W