Large heavy duty padlock for indoor and outdoor use features a one-piece lock body, 304 stainless steel shackle, 53mm lock body width, 8mm latch diameter, and weighs 270 grams. Designed for maximum security, this combination padlock is suitable for gates, garages, sheds, fences, warehouses, schools, gyms, employee offices, and more, providing enhanced protection against theft. Constructed with high-strength zinc alloy, the lock is rust-proof and weather-resistant. The reinforced bumper and hardened 304 stainless steel shackle offer increased durability and cut resistance. Tested for over 180 hours in salt spray to ensure performance in harsh conditions. The 4-digit combination offers 10,000 possible code combinations, enhancing security over 3-digit models. The metal dial wheels are tamper-resistant and designed to withstand physical manipulation. Features a one-touch locking mechanism: after setting the combination, press the center button to extend the shackle for easy locking. Password reset is located at the bottom of the lock for added concealment. To reset, unscrew the cover, push up the SET button, then set a new combination. This design helps prevent accidental password changes and ensures reliable access.