Trailer Coupler Hitch Lock Tow Ball Security Anti-Theft U-Shape Trailer Lock and hook all the positives

and hook all the positives electrode wires together and ground all the negative electrode wires

it is a practical gift for caring for loved ones

1 x Pre-wired DC Power Jack

even kids can easily complete the inflation

Trailer Coupler Hitch Lock Tow Ball Security Anti-Theft U-Shape Trailer Lock and hook all the positivesAbout the item Made of highquality iron and aluminum alloy, with special coating, durable, rustproof and weatherproof. The U shape lock can resist picking, prying and drilling. Works with most caravans and trailers with 50mm tow balls as standard. The Lock fits 1 7 8", 2", 2 5 16" couplers and ratchet is adjustable with 10 locking positions. It is easy and quick for you to install and remove,and bright yellow color can provide high visibility. Each