All KEYED ALIKE disc locks, open by same key. With Keyway Cover keep cylinder clean, 4 drain holes, Great protection for tough environment. #304 Quality Grade stainless steel shell, 1.5mm thickness material made, weather resistant. Each lock come with 2 brass keys. 5 High precision pins, 5pins x 5 steps, with high precision pins , high PICK-Resistance ability. Hardened steel shackle with chrome plated (HRC 50-55), ANTI-SAW. 70mm (2-3/4“) width stainless steel body, 9.5mm diameter shackle. With Fine Materials, and high precision parts and tooling. Same size as Master lock, For indoor and outdoor use; Great for Storage unit lock, Garages & Sheds, Trailers, Pods, Trucks and more. Any quantity of this lock purchase will be KEYED ALIKE，Same keys, each lock comes with 2 keys, one key opens all locks. Great for management purposes. made out of #304 stainless steel, Hardened steel shackle in chrome-plated (HRC50-55, Anti-Saw). Solid brass cylinder and pins, great pick-resistant performance. With Good material, good parts, high precision tooling. For indoor and outdoor use; best used as a storage lock and for Garages & Sheds, Trailers, Trucks, and more.