Product Descriptions: Up to 10 tons can be lifted, thanks to features such as forged steel hooks. Lift heights of either 10 or 20 feet are standard, but custom options are available upon request with FOB Shipping Point. - This product meets the standards set by ASME B30.16. - It features an automatic double-pawl braking system for added safety and reliability. - The hooks themselves are made from high-quality Grade 80 steel that has been heat treated for superior strength.