concentrated Design: Made specifically for 2 5 / 16 inch couplers, check compatibility with your trailer before purchase to achieve correct alignment and enhanced operations Strong Construction: Built with sturdy stainless steel locking pin and ductile iron housing, this trailer security device proposals pry resistance with dark protective coating to deter tampering Unique structure: Features a distinct pattern that prevents unauthorized duplication and access, maintaining exclusive control over the locking mechanism Wide Compatibility: This heavy duty 2 5 / 16 inch trailer ball fits various vehicle types including motorhomes, trucks and boats, providing full coverage for your valuable equipment while meeting requirements Security Solution: Designed to protect your trailer, recreational vehicle or boat from theft, this robust locking product provides consistent security during transportation, Manufacturer: NTCLHFXU