Maximum Security Slot Lock Double Locking Mechanism Two Special Keys Included Available in Nickel Finish The Smith & Wesson model 104 maximum security nickel finish handcuffs. For high risk transfers. Specially designed key and keyhole bushing. Will not open with standard handcuff key. A warded lock and a smaller keyhole greatly increase security. MEETS NIJ STANDARD 0307.01 Specifications: Wrist Opening: 2.04 First Notch Inside Perimeter: 8.40 Last Notch Inside Perimeter: 5.80 Tightest Inside Width: 1.80 Weight: 10.0 oz Locking Positions: 23 Distance Between Cuffs: 2.00 Maximum Overall Length: 8.98 Two Special Keys Included Specifications Brand: Smith & Wesson Manufacturer part #: 350107 UPC: 022188501070 Category: Restraints › Handcuffs Shipping weight: 0.71 lb Country of origin: US Ships fast from GunCycle — free economy shipping on orders $99.99+.