ITEM NAME:Easy Install Safety 5/8" Tow Hitch Ball Bar Lock Pin Heavy Duty with Keys Description: Brand new! Harden Steel For Maximum Protection 5/8" Hitch Pin Lock with Rubber Cap Protect Lock From Moisture and Dirt Rubber cap keeps dirt out Safety Locking Mechanism Specification: Lock body: steel Key: copper Size of Lock:ÃŽ ¦16mm This lock is widely used for trailer connectors for mobile devices such as RV,Boat, and automobile etc. Suitable for 5/8 "(diameter: 16mm) Package Includes: 1 x Trailer Lock 2 x Keys SKU: DMO0021917252019836.Lock body: steel. Size of Lock:ÃŽ ¦16mm. 1 x Trailer Lock. Key: copper.