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 in harsh conditions. The lock body is reinforced with a protective bumper for added strength and reliability. The hardened 304 stainless steel shackle offers excellent cut resistance. Tested for over 180 hours in a salt spray environment to ensure long-lasting performance in extreme weather. 4-digit combination mechanism provides 10,000 possible code combinations, offering enhanced security compared to 3-digit models. Features 4-position metal code wheels and a tamper-resistant design that prevents the shackle from being removed or forced open by physical means. Delivers peace of mind with reliable security. One-touch locking mechanism allows for easy operation. After setting the correct 4-digit code, press the center button to release the shackle quickly and smoothly. Designed for convenience and consistent performance. Hidden password reset design enhances security by concealing the combination at the base of the lock. To reset the code, remove the screw, insert the reset tool, lift the internal lever to engage the SET position, then set a new combination. Helps prevent accidental resetting and ensures the lock remains accessible only to authorized users.