ECONOMY CONTRACTOR PADLOCKS – 1 UNIQUE KEY Economy lightweight padlock, durable non-conductive spark proof body made of Nylon PA6, Shock, UV and Chemical resistant, withstands deformation and high ambient temperatures from -20 Deg. C 177 Deg. C. FEATURES: ● Key Retaining feature ensures keys cannot be removed until padlocks are closed. ● Padlocks & Keys are without any numbers. Key: 1 Unique Key with every Keyed Different (KD) padlock.