🔐 Lock it down, travel with confidence! Constructed from heavy-duty A36 steel and aluminum alloy for maximum durability. Bright yellow color ensures your lock stands out, deterring potential thieves. Effortlessly install and remove in seconds, so you can hit the road without delay. Engineered with advanced anti-theft technology to keep your trailer safe from prying eyes. Enjoy peace of mind with a full year of manufacturer warranty and 24/7 tech support. Rustproof & weatherproof Heavy-duty steel 11 locking positions The Funmit Trailer Lock is a universal coupler ball lock designed to fit 1-7/8”, 2”, and 2-5/16” couplers. Made from heavy-duty A36 steel and aluminum alloy, it offers superior durability and weather resistance. With 11 adjustable locking positions, this lock ensures maximum security against theft, while its bright yellow color provides high visibility. Backed by a 365-day warranty and 24/7 tech support, it's the perfect accessory for your travel trailer.