Heavy-duty Chrome Vanadium construction. Long reach arms compress a higher proportion of the coil spring. Allows even and safe compression of spring prior to installation. Features & Benefits:Heavy-duty Chrome Vanadium construction.Long reach arms compress a higher proportion of the coil spring.Allows even and safe compression of spring prior to installation.Maximum Load: 850kg.Model No. AK3842 Specifications: Model No AK3842 Brand: Sealey Nett Weight: 1.23kg Drive: 19mm Hex Maximum Reach: 350mm Maximum Capacity Per Pair: 850kg