• Carbon steel, hardened lead screws and cast jaws.• Wrapover coil claws for extra safety.• Suitable for use where space under wheel arch is limited.• Use with 1/2"Sq drive wrench.• Maximum Jaw Opening: 244mm.• Maximum Capacity Per Pair: 1000kg.Spring not included.Carbon steel, hardened lead screws and cast jaws. Wrapover coil claws for extra safety. Suitable for use where space under wheel arch is limited.• Hardened carbon steel lead screws and cast jaws. • Wrapover coil claws for extra safety. • Suitable for use where space under wheel arch is limited. • Use with 1/2"Sq drive wrench. • Maximum Jaw Opening: 244mm. • Maximum Capacity Per Pair: 1000kg. • Model No. AK3841Technical Specification:Nett Weight: 1.84kgDrive: 21mm Hex/1/2"SqMaximum Jaw Opening: 244mmMaximum Capacity Per Pair: 1000kgDimensions: Length: 84mm x Height: 72mmWeight: 1.77KgWarranty: 1 year