ambidextrous
The term "ambidextrous" refers to the ability to use both hands with equal skill. While most people have a dominant hand, an ambidextrous person can perform tasks such as writing, throwing, or playing instruments with either hand. This trait can be natural or developed through practice and training.
In addition to its use in describing individuals, "ambidextrous" can also apply to tools or devices designed for use with either hand. For example, some kitchen utensils and computer mice are made to be ambidextrous, allowing anyone to use them comfortably, regardless of their dominant hand.