This is the top quality Condor Motorcycle chock allowing you to single-handedly stabilize a large road bike, no problem. It is made of high strength aluminum and comes with a trailer mount kit. I used it once to transport a Harley from Henderson, Nevada to Salt Lake City in my Trailer and no longer have need of it. This is a must have for anybody who transports large bikes or wants to just cruise into a chock stand in their garage without dealing with putting the kickstand down. Very nice item. This is the top of the line when it comes to wheel chocks.