Like all other Hammerhead sharks, the winghead shark has a "hammer" on its head known as the "cephalofoil". The winghead shark's cephalofoil is very long and thin, making it different from other Hammerhead sharks. The width of its cephalofoil is 40 to 50% of the body length. The cephalofoil is arrow-shaped from above, and has small bumps in front of the nostrils. Unlike other Hammerhead sharks the nostrils are closer to the centre of the cephalofoil than the ends. The winghead shark is normally grey, greyish-brown or light brown in colour. It is a small shark, usually growing up to the length of 130 cm (51 inches), but the longest ever found was 186 cm (73 in) long.