1.1. Material: The heavy-duty Long Shackle Combination Padlock is made of sturdy and durable zinc alloy with stainless steel structure, with a thick layer that prevents rust and is long-lasting. 2.2.Practical U-shaped design: This 4 Digit Combination Padlock can be adjusted in length to meet your required specifications; In addition, the U-shaped setting can be suitable for more door locks and has a wider range of applications. Its keyless design eliminates the need for you to carry a key, thereby reducing the chances of loss or theft. 3.3. More secure 4-digit password lock: The Stainless Steel Retractable Long Shackle with 4-digit passwords ensures over 10000 password combinations; This design makes it difficult for thieves to open, providing you with strong security; It has a hardened plated steel shackle with a diameter of 8 millimeters, which can resist cutting and sawing. 4.4.Widely used: Password lock, ultra long lock buckle, flexible application, The heavy duty cabinets lock suitable for home or school storage cabinets, gym storage cabinets, fences, toolboxes, doors, carports, etc