ABUS 10KS 2' Maximum Security Square Chain and Sleeve - 3/8" Diameter Chain Link Chains made from hardened special alloy with special yellow zinc plating for superior corrosion resistance 3/8-Inch Diameter links Nylon sleeve helps protect against scratches Top security against all types of aggressive attacks Chain - 10KS, Cutting Force - 8 Tons, Inside Height - 1.5 inch, Thickness - 3/8 inch, Inside Width - 5/8 inch