Lanfee Trailer Jack Block

https://youtu.be/i2wHSxJBFJw

Trailer Jack Block – RV Leveling Blocks for Travel Trailers Wheels and Any Jack, 16,000 lbs RV Jack Blocks, Camper Jack Blocks Universal Compatibility & Convenient Storage 1 Pack (Amazon Affiliate)
US: https://amzn.to/3K22b2s