HEAVY DUTY KEYED PADLOCKS: Our padlock set includes 4 x 40mm steel padlocks. Each padlock measures 6.4 x 4.2 x 2.4 cm and is fitted with a 6mm thick tamper-proof shackle. They come with 2 keys each, so you have your everyday key and a spare in case you lose it. They are both exterior and interior padlocks and are weather, rust, heat and fade resistant. HIGH SECURITY: Each padlock has multiple security features. The body of the padlock is made up of approximately 21 laminated sections held together by 8 strong rivets. The shackle is 6mm thick, making it difficult to cut, force or break. We recommend oiling or greasing the lock regularly to keep it working longer. A key lock is a good way to deter opportunistic thieves and protect your belongings. SECURITY: The bottom of this original padlock is reinforced with a plastic cover to prevent scratches. Thanks to this protection, the metal body of the padlock is not likely to rub or scratch your gate or fence in the event of wind. In