Like all other hammerhead sharks, the scalloped hammerhead has a "hammer", which is known as the "cephalofoil", on its head. The shark's eyes and nostrils are placed on the ends of the cephalofoil. Scalloped hammerheads usually grow to the length of 1.5 to 2.7 meters long, but the longest found was 4.3 meters long. The heaviest ever found weighed 150 kilograms. They are usually olive, bronze, light brown, grey-brown or even silver-grey in colour with a white belly. The edges of the fins are usually darker on the young, but as they grow older they become more lighter.