50mm Yellow Universal Caravan Trailer Hitch Tow Steel Ball Lock Safe SecurityThis lock is highly effective method for securing your caravan or trailer， they prevent being from hitched and towed away. The lock is designed to fit most of all tow couplings and is ideal for trailers and caravans fitted with standard 50mm tow balls.Specification:100% brand new.Main Color: Silver and YellowSize: like the picture show.Main Material: SteelFitment: suitable for most about 50mm pressed steel and cast trailer hitch coupling's.Features:- Constructed from heavy duty steel- Fully adjustable universal fit- Easy to fit- Resistant to rust and corrosion- Advanced looking mechanism for improved security- Easy and quick to install and remove- 12mm steel bar and durable steel body- Helps protect against tow away theft- Supplied with 2 keysNote:1. Please check the size measurement chart carefully before making payment.2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)3. The color of the actual items may slightly different from the listing images due to different computer screen， thanks for your understanding.4. Instruction is not included.Package included:1 X Lock2 X Keys