Expands to fit openings, doorways and hallways 29-50 inches wide (gate must be fully assembled within opening); stands 30 inches tall.;Includes two extensions kits 6-inch wide and 12-inch wide;Pressure mounted wall saver design is easy to set up with no tools requires;One hand open with safety locking feature;Great for Children and Pets Too!;Certified by American Material Society Testing and Juvenile Product Manufacture Certification