It is an eye-stone, a term referring to the dressed socket-stone used to receive and pivot a door or gate, effectively the hinge-housing of a medieval entrance. This one is modest in scale, roughly 28 centimetres wide at the base and 24 centimetres tall, with a receiver channel about 7 centimetres across. It lies to the east of the east gable of the associated church site, lightly spawled, meaning its surface has flaked or chipped with age, and with no clear evidence of deliberate dressing still visible on its face.

The fragment belongs to a cluster of architectural stonework connected with Tullaghmelan church, a medieval ecclesiastical site whose remains share the graveyard. Eye-stones like this one are easy to overlook precisely because they were functional rather than decorative, the kind of element that kept a door swinging rather than announcing anything about the building's ambition or patronage. That this one has survived at all, displaced from its original position and resting among the grass east of the gable, is largely a matter of the material: limestone endures even when the timber, ironwork, and rubble around it have long since disappeared.