Satin finish Solid brass case
Case hardened steel shackle for a high shear resistance,
copper , nickel and chromium plated for a high corrosion
resistance
Pick resistant security pin
Pick resistant mushroom type drivers
Two nickel plated brass keys
Rounded edges and Hologram on case
Two casehardened , nickel plated steel, spring loaded and
offset bolts that prevent opening when being picked
Phosphor bronze pin tumbler springs
Bolt springs in piano wire steel
An unbeatable against mechanical tool attacking