Zinc-Galvanized Steel Carabiner Spring Snap Link Hook - Choose from 6 Sizes 40mm to 140mm - 1-1/2 to 5-1/2 Link size: 100mm x 10mm

Working load limits - 40mm: 40 lbs/20 kg, 50mm: 80 lbs/36 kg, 60mm: 140 lbs/64 kg, 80mm: 280 lbs/128 kg, 100mm: 500 lbs/227 kg, 140mm 800 lbs/363 kg. Dimensions: 40mm x 4mm inside width 12mm tapers to 5mm at eye, maximum gate opening 4mm; 50mm x 5mm inside width 15mm/6mm 5mm gate; 60mm x 6mm inside width 18mm/8mm, 7mm gate; 80mm x 8mm inside width 23mm/10mm, gate 10mm; 100m x 10m inside width 30mm/12mm, gate 12mm, 12 x 140mm inside width 45mm/20mm, gate 24mm. (25.4mm = 1 inch)