This is a wonderful device for a single axle trailer. No nonsense driving on and off blocks and it's rigid as well. It will probably work OK on a lightweight dual axle trailer as well if only an inch or two is needed. Lift one wheel on a dual axle trailer and the other comes up with it but this leveler probably won't take much more weight than is typical on a single axle.
The device needs good GREASE on the threads! I kept mine in a Pizza bag (literally) to keep from getting grease everywhere.
-- Chuck