Learn-To-Swim® Arm Floats unique design provides proper buoyancy with maximum comfort. 16 gauge vinyl construction is heavier than any other arm-band product. Popular swim trainer for beginners of all ages. Two brightly colored, heavy-duty, inflatable arm bands provide proper buoyancy for beginner. Unique comfort design allows child to hole arms down when not in water.There is a 4 units minimum, if this is the only item you are ordering.