| 1.Handcuffs length 210mm 2.Handcuffs lower and upper plates thickness 2.5mm 3. Adjustable 21 gears grooves, gear thickness 3.5mm 4. When first gear is locked, the maximum internal diameter is 81mm 5. When last gear is locked, the minimum internal diamete is 52mm 6. Weight 375g (not including keys) 7. Accessory: 2 keys for each set of handcuffs, Key length 43.5mm |