Broken in half, its back face missing, the fragment measures roughly three-quarters of a metre long and a little over a third of a metre wide. What survives is enough to suggest that the original piece was something considered and deliberate: a carved decorative panel, framed by a plain moulding and filled with rows of incised spirals arranged in four interconnecting lines of six or seven each. The spirals are not scratched lightly into the surface; they are worked with evident intention, though the technique is incised rather than raised, pressing into the stone rather than standing proud of it.

The closest parallel identified for this carving is a panel on the south face of Muiredach's Cross at Monasterboice in County Louth, one of the finest surviving examples of Irish high crosses, dating to the early tenth century. The Monasterboice panel uses the same spiral motif, though there the forms are executed in high relief, where the design projects outward from the surface rather than being cut into it. The Leggetsrath fragment shares the compositional logic of that panel but renders it differently, in a flatter, more restrained mode. Whether the two pieces are broadly contemporary, or whether one draws on the visual language established by the other, is not something the surviving fragment alone can settle. What it does confirm is that this kind of interlocking spiral ornament was a recognisable decorative vocabulary in early medieval Irish stonework, appearing across sites and centuries with enough consistency to allow comparison even between pieces separated by geography and technique.

The block is held in the OPW store in Kilkenny, where it is not on public display. Its origins at Leggetsrath, a townland in County Kilkenny, are noted, but the original structure it belonged to remains unidentified from what survives of the piece itself.