Mature spotted eagle rays can be up to 5 meters ( 16 ft ) in length ; the largest have a wingspan of up to 3 meters ( 10 ft ) and a mass of 230 kilograms ( 507 lb ) .
Spotted Eagle Rays are around 17 to 35 cm wide at birth , but adults can be as long as 16 ft ( 5 meters ) , and have the wingspan of 3 meters ( 10 ft ) .