My previous rv trailer came with Greenballs. One year in and they were leaking from cracks in the sidewalls. Greenball made good on replacement, and Costco carried them, so got a new set and paid the difference to upgrade to radials. Sold that trailer, but I know the owners and they are still running those tires.
"I might be movin' to Montana soon..."
2013 Eagle 29.5RKS
2013 Ford 6.7L diesel F350