ABUS 90RK/50 Series padlocks with high quality TITALIUM™ body and stainless steel shackle. A marine grade padlock which offers the maximum corrosion resistance. The rust-free internal components offer durable security with the close shackle offering additional protection. These padlocks have a 6-pin tumbler cylinder with anti-pick mushroom pins to help resist picking and the rekeyable mechanism allows locks to be changed to new key.