Stainless steel heavy handcuffs. Keyed lock with tumbler. Smooth finish.
 
Small Measures:
Inner Diameter: 2.1 Inches
Height: 1.58 Inches
Thickness: .80 Inches
 
Large Measures:
Inner Diameter: 2.4 Inches
Height: 1.58 Inches
Thickness: .80 Inches