Fangrui Product Details Heavy Duty Indoor Outdoor Padlock - Large Heavy-duty Padlock Adopts One-piece Lock Body, 304 Stainless Steel Locking Beam, 52mm Wide Lock Body, 8mm Diameter Shackle, And Can Effectively Prevent Shearing And Prying. Over 180 Hours In A Salt Test Has Been Conducted To Prove Its Resistance Against Harsh Conditions. Hidden Password Anti-error Design - The Password Is Located At The Bottom Of The Lock, Which Enhances The Concealment. To Change The Password, You Need To Unscrew The Screw, Push The Setting Key Up To See The Set Key, And Then Reset The Password. This Can Effectively Avoid The Problem That The Password Cannot Be Opened Due To Inadvertent Password Change. One-touch Unlocking Design - The For Original Password Of The Lock Is 0-0-0-0. After The Password Is Adjusted, The Middle Button To Open The Lock, Which Is Very Convenient To Use. Note: Please Take A Photo To Record The New Password When Changing The Password, So As To Avoid Being Unable To Open It. Appearance - The Square Shell Design Is Simp