Here's what other sites are saying:
C.A.M.P. Big Wall & Protection Aluminum Fifi Hook-Orange 304303. A.M.P. is primarily used on a loop that is connected to the climbing harness so the climber can rest off the top placement.
Fifi hooks still are essential to every aid climber's kit, but most hooks are still outrageously heavy and bulky. Camp USA introduced the Aluminum Fifi Hook years ago to fit the the "light is right" mantra that's inside every modern climber out there.