ANTI-THEFT DEVICE | A simple essential product to protect your trailer from being easily snagged and stolen. With this trailer hitch applied to the tow ball, it will immediately get in the way, so you'll know your property is safe! The surprisingly bright yellow color makes the obstructing hitch clearly visible, even in the dark. LONG-LASTING, STRONG AND SECURE | The device is made from corrosion-resistant materials, designed to resist weather and thieves over time. The main body is cast steel for a secure fit. The bar is made of 12mm case hardened steel to resist any tool breakage. EXTREMELY EASY TO USE | This hitch is easy to lock in place and remove when needed. Simple to install in 3 quick steps. Place the lock body on the tow bar where the vehicle usually attaches, then slide the U-shaped bar down and turn the key to adjust. ADJUSTABLE TO FIT | The design includes 6 variable locking positions to ensure suitability for a wide range of applications. It is suitable for 50mm pressed steel and cast iron tow ball hitches, the standard for most trailers and caravans. Use for small dog crates, standard domestic trailers or larger agricultural vehicles as well as camping trailers or touring caravans.