The slab is modest in every dimension, measuring just 43 centimetres tall and 26 centimetres wide, roughly the size of a large book. On its west face, someone carved a plain two-line cross, the kind of mark made not for ornament but for meaning.

Children's burial grounds of this type, known in Irish as cillíní, were used across Ireland for centuries to inter unbaptised infants and others considered ineligible for consecrated ground under Catholic canon law. They are often ancient in origin, sometimes occupying the sites of early medieval enclosures or church lands, and they carry a particular quiet weight in the landscape. The cross-slab at Eochaill fits within that tradition. Its association with a broken pillar stone beside it suggests the site accumulated markers over a long period, each generation leaving something against what the last had left. The slab itself was recorded by Jocelyn Higgins in 1987, catalogued among a wider study of early stone monuments in the region.