These ASP Ultra Handcuffs are similar to the Model 56110, with the key difference being the two-pawl system. The high-security 2 pawl lock uses a special key included with the handcuffs. This special key system makes it harder for others to attempt to pick the handcuffs or to shim them open. These cuffs also feature the same smooth action that all other ASP Ultra Handcuffs have as well as all of the smooth engineering that one comes to expect from ASP handcuffs in general. Weigh 6.9 ounces. 1 key included. Requires oversized handcuff case. DISCONTINUED.