Review on DEDC Chocks Caravan Stoppers Trailer by Albert Lee

They are very light weight, have no rubber or gripping surface on the bottom and move easily, the slightest push and they slide down the driveway. The leading edge is high so they don't slide under the 13-inch tires far enough to actually stay under the tire. I wouldn't buy them again and it's too late to return them so they will be in the corner of the garage.