Transcribes a marking line from any fixed object to a concrete product that needs to be cut in. Mark the properly sized retaining wall block or individual pieces of wall cap to make a perfect radius cap on your curved walls. Lightweight & portable - allows you to trace irregular shapes like natural rocks in order to perfectly incorporate them into a beautiful retaining wall. Quickly and perfectly scribe in a soldier or sailor row when the pavers are going to be against a hard fixed surface. This allows the pavers to then be cut in place, so the border pavers can simply be dropped into place for a perfect fit. Use to draw radii for fire pits up to a 24" diameter, just like using a drawing compass or a beam compass. Mark angles for perfectly mitered corners. There are 3 angles (90°, 45°, 22.5°) engraved on the inside of one of the arms which can be tightened into place for consistent marking from paver to paver. Just trace the angle.
