• All parts made from steel with internal parts case hardened • Double tumbler locking system • High tensile spring (56-58 HRC) • Reinforced steel swivel link handcuff • 13 locking positions on 34 mm thick ratchet • Handcuff cheeks 2 mm thick per side • Handcuffs are nickel plated for reinforcing, scratch and weather resistant • Individually packed with 2 keys • Weight per handcuff 400g