Doctor Octopus, also known as Doc Ock, possesses four mentally controlled, electronically powered, telescoping, prehensile titanium-steel tentacles attached to a stainless-steel harness encircling his body. Each tentacle is approximately five inches in diameter and terminates in three single-jointed pincers. These pincers can rotate 360 degrees, providing Doc Ock with a high degree of maneuverability. The tentacles are capable of moving at a speed of ninety feet per second and can strike with the force of a jackhammer. They can also extend to a maximum of 24 feet in length. Additionally, the tentacles can generate high-wind speeds of up to 50 miles per hour when spun like a giant fan. Doc Ock can use his tentacles to scale walls and traverse horizontal distances, effectively allowing him to travel high above the ground as if on stilts.