Swim paddles are training tools used by swimmers to enhance their upper body strength and improve their stroke technique. They are typically made of lightweight plastic and come in various shapes and sizes to suit different swimming styles. By increasing the surface area of the hands, swim paddles create more resistance in the water, helping swimmers build muscle and refine their movements. Swim paddles are often used in conjunction with other training equipment, such as kickboards and pull buoys, to focus on specific aspects of swimming. They can be beneficial for swimmers of all levels, from beginners to competitive athletes, as they help develop better hand positioning and overall swimming efficiency.