Petzl - ASAP LOCK, Mobile Fall Arrester with Locking Function
[Product Information]
PROTECTED: Constant fall protection and locks on the rope even if grabbed during the fall.
VERSATILE: Works on vertical or angled rope.
LOCKS UP: Integrated locking function allows the user to immobilize the device to reduce the length of a fall. In case of a strong wind, this function also prevents the rope from being blown upward.
EASY TO USE: Moves up or down the rope without any manual manipulation of the device.
MATERIAL: Made from aluminum, stainless steel, and nylon.