Hand grippers are simple exercise tools designed to strengthen the muscles in your hands, fingers, and forearms. They typically consist of two handles connected by a spring mechanism, allowing users to squeeze the handles together. This action helps improve grip strength, which is beneficial for various activities, including sports and daily tasks. Using hand grippers can also aid in rehabilitation for injuries related to the hands or wrists. They come in different resistance levels, making them suitable for beginners and advanced users alike. Regular use can enhance overall hand dexterity and endurance, contributing to better performance in activities like rock climbing or weightlifting.