It measures just 66 centimetres by 34 centimetres, barely thicker than a thumb's width, yet cut into its face is an equal-armed cross whose arms are defined by a broad, pocked line only 3mm deep, with rounded hollows carved into each of the four angles between the arms. The back of the stone is entirely blank.

St. Berrihert's Kyle is an early ecclesiastical enclosure, a site associated with a local saint and enclosed by an oval stone boundary that was formalised in its current form by the Office of Public Works in 1946. The word "kyle" derives from the Irish "coill", meaning a wood or grove, and such names often point to early Christian sacred landscapes where natural features were bound up with devotional practice. The cross-slab itself belongs to a wider tradition of incised stone markers common in early medieval Ireland, where a flat slab, often of local stone, was carved with a simple cross and placed within or near a church site. This particular example, catalogued as slab 24 by the scholar Ó hÉailidhe in 1967, is one of a collection of such slabs brought together within the enclosure, the red sandstone distinguishing it visually from its neighbours.