The Capital is the top trim part of the modular column. Order an abacus as the very tip-top trim to your capital. Also available separately, and for a different look, are Capitals with Blocks. This gives you two ways to terminate the column at the top.
Make sure you order the Capital size that matches the diameter of your column shaft.
For use as onlay moulding, order the parts split to fit flush on the surface of your cabinet, wall, face frame or door casing.
For corner applications, order the parts notched.