It measures just 26 centimetres by 10 centimetres, yet what survives on its surface is enough to suggest something considerably more elaborate once existed: a portion of a cross-head, almost certainly belonging to a seven-armed segmental cross.

A seven-armed segmental cross is an uncommon form, its arms arranged not in the familiar rigid geometry of a high cross but in curved, rounded segments radiating outward. That only a fragment survives makes it difficult to be certain of the original design, but the identification, proposed by Maher in 1997, is considered probable. The slab itself has been inserted into the abbey wall rather than lying flat as a gravemarker in the conventional sense, which suggests it was reused or repositioned at some point, its original context now lost. The Augustinian abbey at Fethard is a medieval foundation, and the transept wall into which this piece has been set speaks to the long habit of Irish ecclesiastical sites absorbing and repurposing older stonework across centuries of use and alteration.