The horizontal bar or high bar is an Artistic Gymnastics apparatus. It is only use by male gymnasts and is made of metal (often steel). Elements on horizontal bar are regulated by the Code of Points. A routine (sequence of 11-15 or more skills) usually include giant swings with various grips (overgrip, undergrip, dorsal grip, mixed grip), in-bar work, turns, release/regrasp skills, and a dismount. Generally, high bar is considered one of the most exciting gymnastics events due to the power gymnasts generate through giant swings and the impressive aerial releases and dismounts which often include multiple flips or twists, and occasionally require the gymnast to travel over the bar.