Design and Details: The rotating swivel combined with the pivoting shackles allow for an incredible range of orientations and movements The unique design opens the swivel and both shackles with a single screw (key provided with product) The safety locking system is independent and opposite to the working direction of the device for easy and safe assembly Stainless steel core with ball bearings combine with an aluminum alloy main body and rings for a very high breaking strength (23 kN) and a high working load limit (5 kN) Shackles have a large opening (18 mm) and large inner working space to allow for connection of several devices to the same ring Specs: Weight: 116g / 4.1oz Strength: 23kN Working load Max: 5kN