Petzl Twin Release System Red/Black/Gold/Silver. It allows the user to easily lower and haul a load most commonly in a confined space. It can also be used to tilt and orient a litter or tension a tripod. With a 4:1 mechanical advantage this system reduces user effort by a factor of four and can manage a heavy load up to 280 kg. The system is releasable under load and provides additional lowering control when using the auxiliary brake on the TWIN RELEASE. Additionally the toothless cam preserves the rope and allows for a smooth transition from hauling to lowering. This kit's maximum working height is 15 meters (50 feet) when fully extended. Specifications for Petzl Twin Release System: Manufacturer: Petzl Color: Red/Black/Gold/Silver Size: One Size Fabric/Material: Stainless Steel Aluminum Polyester Weight: 16.84 lb Features of Petzl Twin Release System Versatile: System is releasable under load and provides additional lowering control when using the auxiliary brake on the TWIN RELEASE progress-capture pulley; Manages heavy loads up to 280 kg and offers a 4:1 mechanical advantage reducing user effort by a factor of four; Can be used to tilt and orient a litter or tension a tripod Quick and easy to deploy: This pre-assembled ready-to-use kit has a working height of up to 15 meters (50 feet); Comes in a BUCKET 30 bag to make storing transporting and accessing the system easier; Cam can be locked in the open position to easily feed slack; Toothless cam helps preserve the rope and allows for easy transition from lowering to hauling and vice-versa; Comes with a cord for controlling the system from a distance Pre-assembled ready-to-use kits include: 1 TWIN RELEASE releasable double progress-capture pulley; 1 SPIN L2 double pulley; 1 AXIS 11 mm 60-meter rope with two sewn terminations (one end sewn in the becket of TWIN RELEASE); 2 Bm'D carabiners with CAPTIV positioning bar; 1 three-meter (ten-foot) cord; 1 30-liter BUCKET bag in red Package Contents: Petzl Twin Release System Petzl P001EA00: Twin Release System Red/Black/Gold/Silver