Combo Package: with both shift lock gooseneck coupler lock & gooseneck stem set bolt lock kit
Shift Lock Gooseneck coupler lock kit: Designed specifically for the Shift Lock gooseneck coupler. Coupler lock kit fits all 30K Shift Lock gooseneck coupler. 3 piece locking kit (Includes Base, Slide Attachment & Disc Lock with 3 keys). Locks your gooseneck coupler to prevent trailer theft
Gooseneck Set Bolt lock kit: Designed specifically to secure your gooseneck inner tube stem & coupler to your gooseneck trailer. Lock kit fits gooseneck trailers with front or side set bolts. 3 piece locking kit (Includes Base, Slide Attachment & Disc Lock with 3 keys). Locks your gooseneck stem & coupler to your trailer to prevent someone from stealing you stem & coupler. Does not fit the 9″ offset gooseneck hitch.
The Shift Lock gooseneck coupler is featured on Shocker 9″ Gooseneck Extensions, Shocker Gooseneck Solid Stems, & Gooseneck Surge Air Hitches.  
Set bolt lock Does NOT work with 9″ offset hitch
Does NOT work with bulldog or wallace forge or ease guide couplers
Only works with Shocker Gooseneck hitches with the Shift Lock coupler (has a silver handle)