Take your strength and technique up to a higher level in the water with this superbly engineered training aid. The Adult Biofuse hand power paddle is a technically advanced Speedo Biofuse Training Aid to assist in swimmer development. Benefits include a durable silicone strap and ergonomically engineered shape for improved grip and reduced hand fatigue. The power paddle is also popular for Triathlon training. Different sized paddles will produce different results. Larger paddles will cause more resistance in the water and will result in a higher-impact workout. Smaller paddles are most ideal for frequent use and endurance training.