Solid Aluminum Puck Lock Hidden Shackle Trailer Lock Heavy Duty w/ 4 Keys Safe

* HIGH SECURITY HEAVY DUTY HIDDEN SHACKLE PUCK LOCK: Warlion's upgraded puck lock boasts a reinforced hidden shackle design adopts unparalleled resistance to multiple attacks like picking, cutting and bolt cutters. The 5/16-inch (8mm) thick solid stainless hasp lock eliminates vulnerable points for shearing. With a seamless round padlock design and enhanced by a 12-pin high-security brass cylinder up to 430,000 codes, it effectively prevents lock picking and tampering. The lock is CNC-machined for impact resistance. Its gold-anodized, diamond-cut surface ensures longevity in outdoor use, delivering you peace of mind. * 1-SECOND KEYLESS PUSH TO LOCK: One-touch push-to-lock-no key needed, single-handed & fast. Align the hidden hole on the puck lock with the hasp, press the disc-detainer, and let the lock rod slide through. A crisp “click” confirms secure lock-hands-free, even when loaded. Unlock: insert key, turn 90°clockwise, core pops out-ready to remove. Quick. Secure. Effortless. * UNIVERSAL FIT DESIGN – MEASURE TO ENSURE PERFECT FIT: Standard & rugged aluminum body: 2-7/8” (73mm) dia. x 1-5/16” (34mm) H. Hidden shackle opening: 1-3/4” L x 1-1/4” W x 9/16” D (44x31x15mm). Lock rod: 5/16” (8mm) dia. Weight: 0.95 lbs (0.43kg). Ideal for industrial/commercial doors. Includes 4 nickel-silver keys — extremely hard to pick. Store spares in multiple secure spots: home, office, case, or cabinet.