Most bullaun stones, which are rounded boulders or rock slabs bearing one or more cup-shaped depressions, present their hollows on a single face. A stone with basins on opposing surfaces is a rarer thing, and raises quiet questions about how it was used, repositioned, or reused across the centuries.

The stone itself is modest in size, measuring roughly 0.45 metres by 0.35 metres, and between 0.2 and 0.35 metres in height. It has been greatly damaged, which makes it harder to read in full. Bullaun stones appear across Ireland in early medieval ecclesiastical contexts, associated with monastic sites, holy wells, and early church enclosures. The water that collects in their basins was traditionally held to have curative or protective properties, and the stones were objects of local devotion well into the modern period. The presence of this example within the church at Cloonmorris, rather than exposed in a churchyard or beside a well, suggests it was at some point moved indoors, possibly for safekeeping, or possibly because it had already been displaced from an earlier setting.