Features: Enhanced Security Mechanism: features anti-pry double ball locking structure, capable of withstanding over 4 tons of pulling force to deter tampering and forced entry. Weather-Resistant Design: built to resist rust, corrosion, and moisture. Suitable for extreme weather conditions including rain, snow, and humidity. Specifications: Material: Stainless Steel Color: silver Size: Lock Body: 70mm length Overall Dimensions: 2.76 x 1.97 x 0.79 in Package includes: 1 × Stainless Steel Padlocks 4 × Individual Keys Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Heavy Duty Lock for Shipping Container: each set includes 1 stainless steel padlocks with 4 individual keys for flexible distribution among family members, team, or staff Durable Stainless Steel Construction: lock body, shackle, and cylinder cover are made of SUS304 stainless steel, engineered for long-lasting performance in both indoor and outdoor environments Free-spinning Shackle: d-shaped shackle design with a rotating mechanism prevents cutting or sawing, offering additional protection for high-security needs Versatile Application: ideal for securing containers, garage doors, gates, fences, storage units, truck doors, iron doors, and more; Please verify shackle size compatibility before use Easy to Operate: align the internal rings, insert the key fully, and turn 180° clockwise to unlock; Reverse the process to lock securely