Model 700-6X Extended Chain Link Handcuff. The Model 700-6X has additional links to accommodate individuals with larger upper bodies. Six links give 5 1/2 inches of distance between the cuffs. The added space reduces shoulder, arm and wrist strain for larger individuals. Eliminates the need to link two sets of cuffs in order to restrain one individual. Incorporates spun rivet construction for increased strength and durability. Smooth single strand action allows for fast and efficient cuffing. The profiled edges minimize the risk of tissue and nerve injury. Two keys supplied. Made in USA. Nickel Plated Finish. Weight: 10.5 oz. (298 gms). Material: Carbon Steel. Min. Opening: 2.0 inches (51mm). Min. Inside Perimeter: 5.9 inches (150 mm). Max. Overall Length: 12.5 inches (317.5 mm). Double Lock: Yes. Keys Supplied: 2.