As one of the original hooks from the golden years in Yosemite, the Black Diamond Cliffhanger is designed for use on small to medium edges. It's made of steel that won't straighten under body weight and has a stable bipod base and flat tip both of which make the Cliffhanger less prone to rocking and rotation.
Features:
Designed for small to medium edges
Chiseled point and flat tip add stability on sketchy edges
Bipod base reduces the chance of rotation