I am selling this item because I own it but have not used it. With a bonus! Retail price: ¥15,400 (tax included) Specifications: Weight: 85 g Certifications: CE EN 567, UKCA, UIAA Minimum rope diameter: 7 mm Maximum rope diameter: 11 mm Pulley type: Sealed ball bearings Pulley diameter: 27 mm Maximum working load: 2 x 2.5 = 5 kN Breaking strength: 2 x 7.5 = 15 kN Maximum working load as a self-jamming pulley: 2.5 kN Breaking strength as a self-jamming pulley: 4 kN Efficiency: 91% - Compatible with 6mm cord "Rad Line" (see the instruction manual for details) - Compatible with 6mm cord "Pure Line" only when used for hauling backpacks