pommel horse

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A piece of gymnastic equipment that consists of a padded, loaf-shaped object with two pommels on top and stands horizontal to the floor, usually on adjustable legs.
• noun An athletic event in which the pommel horse is used.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun An apparatus for gymnastic exercises with a cylindrical body covered with leather and two upright pommels, as hand grips, near the centre; held upright with adjustable legs
• noun An athletic event in which the pommel horse is used.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a gymnastic horse with a cylindrical body covered with leather and two upright handles (pommels) near the center; held upright by two steel supports, one at each end