Abstract: A device and method for enhancing swimming exercises which can be used with the swimmer's legs, hands and head. The device can be a closed cell EVA foam sphere having opposite sides formed into concave cavities. The cavities permit a swimmer to position the device between his/her knees and against which the swimmer must apply leg-closing pressure. This causes the swimmer to maintain streamline during the entire pulling phase of the arm movement of the swimming stroke. With the device positioned at the same location, breaststroke kick training can also be enhanced as it causes the swimmer to apply pressure to maintain proper knee distance during kicking. Alternatively, the device can be held in one hand while the other hand is used to implement the particular swim stroke, and the device can be exchanged easily to the other hand. The device can also be placed under the chin during swimming exercises.