3/16 welded, cold-rolled steel construction with a sand blasted, bright yellow powder coat and a no-nonsense design that fully encompasses the ball head of a Demco EZ Latch coupler. Accepts most “puck” style locks (sold separately) which by design are completely bolt cutter proof. Time, noise, power tools or a cutting torch will be required to defeat our lock design which will eliminate most theft interest. Be sure to compare your coupler to the pictures here and DO NOT buy if it does not match. We also sell a few different brands of the “puck” style locks (sold separately) with varying levels of security. DO call us for clarification if you have any questions. Made in America!