Echin capitals of the Doric warrant .
Ekhin ( dr. Greek ἐχῖνος - " sea urchin ") - part of the capital located under the abacus and is the transition from the column to the abacus. In the Doric warrant, the echin is devoid of decor and has a convex shape; in an ionic order, it has a curved profile.
In classical Greco-Doric and Tuscan orders it was executed in the form of a round smooth pillow with a convex curved profile. In rimodoric and ionic orders, the pillow was decorated with ionics .