ONE TURN OF THE KEY. ZERO PEACE OF MIND LOST.
Worried someone could hitch up and drive off while you're inside the gas station? Slide the RhinoGear over your coupler, turn the key, and the hardened steel jaw clamps shut around your trailer's ball socket. No hitch ball can fit inside — your trailer is physically impossible to tow until you unlock it. No loosening on bumpy roads. No re-checking at every stop. Locked at the campsite, locked at the rest stop, locked when you get home.
BUILT WHERE OTHERS CUT CORNERS.
The four failure points every cheap coupler lock hides — engineered out. Hardened solid steel jaw that won't shear under bolt cutters. Pick-resistant tubular cylinder rated against bumping, picking, and drilling. Weatherproof black powder coating tested to 96 hours of salt spray. Reinforced internal pin rated to 5,000 lbs of pull. Trailer, RV, boat, or off-road rig — lock it once and walk away.
ONE KEY. ONE TURN. DONE.
No tools. No fiddling. No combination dials to spin in the rain.
Slide the hardened steel jaw over your coupler, turn the key, and it clamps shut around your ball socket. Three seconds and you're locked. When you're back, insert key, turn, lift off — gone in three more. The powder-coated shell shrugs off rain, mud, road salt, and UV. The steel core shrugs off bolt cutters and pry bars. Lock. Drive. Unlock. Roll.
Testimonials
FAQs
It fits the vast majority of standard couplers — 1-7/8", 2", and 2-5/16" ball sockets, with a max coupler lip width of 4.5" and lip height up to 1/4". That covers most utility trailers, RVs, boat trailers, off-road rigs, and toy haulers. Not compatible with Airstream Basecamp or oversized commercial couplers. If you're unsure, measure your coupler's lip width and height before ordering.
Three seconds. Insert the key, swing the steel jaw open, slide it over your coupler so it fully encloses the ball socket, turn the key to lock. No tools, no instructions, no fiddling. Removal is the same in reverse.
The hardened steel core is engineered against bolt cutters and pry bars — a thief would need an angle grinder and several loud minutes to even attempt it. The tubular lock cylinder is pick-resistant, bump-resistant, and drill-resistant. Most thieves walk away the moment they see it.
Yes. The black powder-coated shell is tested for 96 hours in a salt-spray cabinet — built for rain, mud, road salt, beach air, and UV. The cylinder stays smooth in cold, heat, and humidity. No seized keys mid-trip.