Measuring just 46 centimetres by 13 centimetres, it is a piece of red sandstone bearing a Latin cross rendered in low relief, the carving barely three millimetres proud of the surface. The arms splay slightly outward, and the mason cut the background deeper into the corners between them, giving the design a subtle framing that draws the eye inward. The reverse face remains hidden against its setting.

St. Berrihert's Kyle is an early ecclesiastical enclosure, a place long associated with an early Irish saint and preserving a remarkable collection of carved slabs of the kind produced by monastic communities in the early medieval period. The oval stone structure that now houses and protects these slabs was built by the Office of Public Works in 1946, a mid-twentieth century intervention designed to consolidate what had survived on the site. The cross-slab itself was catalogued by scholar Ó hÉailidhe, who numbered it slab 39 in a 1967 study of the collection, placing it within a broader corpus of early Christian carved stonework from the region. The red sandstone from which it is made is a material well suited to this kind of precise, shallow carving, holding fine detail across considerable spans of time.