The Scan Laminated Steel Combination Padlock boasts high security for your valuables. It's built with sturdy construction: individually galvanized steel plates and a case-hardened shackle. This durable design can withstand wear and tear while resisting rust. The lock's core strength lies in its precision-engineered 4-wheel brass mechanism. It allows for an impressive 10, 000 unique code combinations, making it highly resistant to cracking. Additionally, the padlock features an all-around safety bumper, protecting surrounding surfaces from scratches during use. Here are the key specifications: Width: 50mm Shackle Height: 23.1mm Shackle Diameter: 8mm Shackle Width: 23.7mm Security Rating: 6