Roughly the dimensions of a large storage chest, the sub-rectangular stone is hollowed out into a basin, tapered slightly from top to base and cut to a depth of eighteen centimetres. A baptismal font of this kind would originally have held the water used for christenings, and this one has a practical engineering detail that sets it apart from a simple bowl: a vertical drain hole bored through the base, narrowing slightly as it passes through the stone, designed to empty the basin cleanly. Three sides of the rim are flat and neatly finished. The fourth is lower, rougher, and partly broken away.

The font did not begin its life where it now sits. It was originally part of the ancient church site at Burgage, a settlement with deep ecclesiastical roots in County Wicklow, before being moved to its present location at Burgage More. At the broken end of the damaged rim, there is a small rectangular hole that appears to have been deeper before the stone was damaged; at the opposite end, a second small circular hole mirrors it. The two together point to a lid, now long gone, that would once have been fixed in place to cover the basin, possibly to keep the blessed water clean between uses, or simply to protect it. That someone thought to secure a lid at all suggests the font was considered worth maintaining carefully, which is itself a small window into how seriously the object was regarded.