This is a model of a traditional kind of gate placed on the edge of a field to allow people in and out but prevent animals from escaping. It's called a kissing gate because if two people go through together - they have to squeeze together at the apex in order to swing the gate...and traditionally...a kiss is required.

This is designed to fit into the stone walls here:

https://cults3d.com/en/3d-model/architecture/4ft-drystone-walls-in-ho-scale-777b8e9fee72266536e5