Specifications:Product Name: Trailer Coupling LockColor: SilverMaterial: Zinc AlloyDimensions: 50x65.5mm(Diameter x Heigth)Application: The Ball Lock is an anti-theft locking device that expands & locks inside the coupling of your trailer preventing the trailer from being connected to a Towball.Fit For: All popular trailer couplingsNote:Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.Please allow a little differs due to manual measurement.includes:1 x Ball Lock1 x Allen Key2 x KeysAbout Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact usDuring the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shoppingThanks for your cooperation and we'll make you feel satisfied.