Heavy Duty Indoor Outdoor Large Padlock. This large heavy-duty padlock features a one-piece lock body, 304 stainless steel locking shackle, 52mm wide lock body, 8mm diameter shackle, and weighs 270g. Designed for maximum security, this combination lock is suitable for indoor and outdoor use on gates, garages, sheds, fences, storage units, school lockers, gyms, and office cabinets, providing reliable protection against theft. High-quality weatherproof and waterproof combination padlock constructed from high-strength zinc alloy for rust resistance and durability. The lock body is reinforced with a protective bumper for added strength and reliability. The hardened 304 stainless steel shackle offers excellent resistance to cutting and sawing. Tested for over 180 hours in a salt spray environment to ensure performance under harsh weather conditions. 4-digit combination mechanism provides 10,000 possible code combinations, offering enhanced security compared to 3-digit models. The lock features 4-position metal code wheels and a tamper-resistant design. The locking latch is securely built and cannot be removed or forced open by manual pressure, ensuring long-term security. One-touch locking mechanism allows for quick and easy operation. After entering the correct combination, pressing the center button releases the shackle, enabling fast access and secure closure. Hidden password reset design helps prevent accidental code changes. The reset mechanism is located at the base of the lock and requires a screw to be removed and the setting key to be activated before a new combination can be set. This feature helps maintain consistent access and prevents errors due to unintentional resetting.