Baby Safety Auto Gate (White) Main Body Size W73 x D4.5 x H79cm (Installation Width: 75-85cm) - Diameter of adjustment bolt contact surface: 3.4cm - Floor to upper bolt center: 75cm (Upper adjustment bolt contact surface is located 73.3-76.7cm from the floor) - Floor to lower bolt center: 3cm - Lower adjustment bolt contact surface is located 1.3-4.7cm from the floor - Width for passage: 47cm - Space between bars: 6cm - Frame thickness: 2cm - Height of floor contact frame: 4cm - Extension frame length: Approximately 30cm *Only one extension frame can be attached to one side. Attaching two or more is not possible (as secure installation cannot be achieved). This is a safe baby gate with an automatic closing function that can be fixed at 90 degrees.