Specification:TypeABMaterialSteel, nylonSteel, nylonDimensions7x8x10.5cm11x8x15cmAperture18mm, 15.6mm22.55mmApplicable rope diameters16-20mm14-16mmWeight665g475gFeatures:Made of high-quality alloy steel, so durable and solid.Two different size, suitable for 16-20mm and 14-16mm rope, meet your differ..