Weight machines are exercise devices designed to help individuals strengthen their muscles through resistance training. They typically use weights or resistance bands to provide a controlled environment for workouts. Users can adjust the weight to match their fitness level, making them suitable for beginners and advanced athletes alike. These machines often target specific muscle groups, such as the chest, legs, or back, allowing for focused workouts. Common types of weight machines include the leg press, lat pulldown, and chest press. They are frequently found in gyms and fitness centers, promoting safe and effective strength training.