It is not fixed firmly in place; it sits loosely in the soil, which gives it an oddly provisional quality, as though it were never quite finished being installed. Cut into its face are three single-line Greek crosses, a form in which the four arms are of equal length, a style associated with early Christian Ireland. One larger cross occupies the upper portion of the slab, with two smaller ones arranged beneath it, a deliberate hierarchy carved into stone measuring just under a metre in height and a little over thirty centimetres wide.

What makes this particular slab especially interesting is a pair of notches cut into each of its long sides, positioned roughly halfway down. Documented by Jill Higgins in 1987, these notches are thought to have served as depth markers, indicating to whoever was setting the stone how far into the ground it should be sunk. It is a small, practical detail, the kind that rarely survives in the archaeological record, and it suggests a careful, considered installation rather than a hasty one. The slab belongs to a group of three cross-slabs recorded by Higgins within the same graveyard, which is itself associated with the remains of a church on the same site. The presence of multiple carved slabs in a single burial ground is not unusual in early Christian contexts across the west of Ireland, but it lends Carrowntomush a quiet density of early devotional material that repays close attention.