This is a pressure mounted gate and must be pressured between an opening to properly function. When installed, the “2-inch” space between the bars is reduced by the pressure between the doorway or opening. Please note the top of page 3 within the Instruction Manual. The gate must be fully assembled within the doorway or opening to eliminate gap between the handle. Also, included in the packaging are wall cups that can be added to the gate for additional security. All of this information can be found within the Instruction Manual that is provided within the packaging. This Easy Step walk through gate is as 31″ tall gate is easy to install and remove. It comes with an extension (extends gate by 6″ “es) and fits opening from 29″ to 39”.This is perfect for pets too. The lever style handle offers an easy one touch release. This is a convenient walk through design and is perfect for doorways and staircases. It is easy to install and take down.