The palastick leveling blocks are great as long as the temperature is not cold, when they get cold they get very brittle and brake into pieces, we went up to Mount San Jacinto and camped for Christmass during the night as the temperature droped so did the RV most anoing night.
Next day I found some rocks and re leveled the RV, when we left I spent more than one hour removing small pieces of yellow plastic, now I use a couple of aluminum curved wedges made for changing tires on trailers, but only for small times on the road.
navegator