Zowaysoon Climbing Gear Rope Grab Protected Device Aluminum for &Oslash;8mm ~ &Oslash;13mm Rope for 8mm ~ 13mm Rope Bearing capacity: 100KG Weight 168g Aviation material--Hot forging aluminum magnesium; Intensity high, light quality,convenient to carry There's a hole in the Grab`s tail, use to connect Carabiner Main Lock--look at the photo 11.2*6.5CM