The Smith & Wesson Handcuffs are fabricated from the finest quality Stainless Steel, perfect for saltwater or humid environements. They are manufactured with heat treated internal lockworks, featuring smooth ratchets for swift cuffing and double locks to prevent tampering. Model Weight Wrist Opening Locking Positions Maximum Overall Length 1 Oversize Handcuffs 12oz 2.40" 31 9.85" 100 Standard Handcuffs 10oz 2.01" 23 8.98" 100P Push Pin Handcuffs 10oz 2.01" 23 8.98" 100L Extra Link Handcuffs 10oz 2.04" 23 10.23" 103 Chain Linked Handcuffs 10oz 2.04" 23 8.98" 104 Maximum Security Handcuffs 10oz 2.04" 23 8.98" 110 Oversize Special Security Handcuffs 18oz 2.80" 24 11.24" 300 Hinged Handcuffs 10oz 2.04" 23 8.13" 300P Push Pin Hinged Handcuffs 10oz 2.04" 23 8.13" 1900 Leg Irons 22oz 2.80" 24 25.63" 1800 Belly Chains Restraint 27oz - - 54" 1840 Belt Chains Restraint 22oz - - 60" 1850 Transport Restraint 44oz - - 32"