Baby Safe Security Gate This is the basic set + L panel + LL panel. When all three panels are combined, it accommodates widths of 150-160cm. It was used for a short period as a room divider, and then the basic set alone was used at the bottom of the stairs. I think it's very convenient because you can change where you use it by changing the combination. When used at the bottom of the stairs, I've attached cushion stickers because the gate would hit the stairs when opening and closing. Please be aware of this. (They can be peeled off normally) Regarding the slant of the door, that is the design specification. Please check the photos for details. Regarding the extension panels, the boxes are separate, and it's difficult to send them with their boxes. Therefore, they may be taken out of their boxes and wrapped in bubble wrap before being placed in the main box. This is the product that appears when you search on Rakuten: Babies Safe Security Gate Basic Set + Extension Panel L size + LL size White & Brown ★ Auto-close system that automatically closes after opening. You can use it with peace of mind because you don't have to worry about forgetting to close it. ★ This gate is difficult for babies to climb. ★ The door can be opened both inward and outward. ★ Gate body product size: (approx.) Height 77cm x Thickness 3.5cm (handle part)