I picked up this at a yard sale. Yesterday I measured and mounted it to my trailer. With two scooters and a Goldwing trike it should make hauling bikes MUCH easier!
It's fastened down with 4 bolts so can be removed in just a few minutes if needed.
For those in the US it is a Harbor Freight unit:
https://www.harborfreight.com/1800-lb-capacity-motorcycle-standwheel-chock-61670.html