Thank you for viewing. I purchased this in January 2026 to install a baby gate, but I didn't use it, so I'm selling it. I opened the box once to check the contents. It is unused. ■Product Name Baby Gate Stairway Installation Adapter Set ■Color Gray ■Manufacturer JTC ■Size Width 46mm (Inner width 42.2mm) x Height 101mm x Thickness 11.3mm ■Main Material ABS resin Thank you.