1) New 18X8.50-8 18x850-8 18x9.50-8 18x950-8 TIRE INNER TUBE VALVE 1) New 18X8.50-8 18x850-8 18x9.50-8 18x950-8 TIRE INNER TUBE 100% COMMERCIAL GRADE RUBBER (latex free): This is the BEST size for snow activities. SAFETY VALVE STEM: No more being poked with one of those long metal stems from the old days TUBE COVERS AND 32" COOLER GET 1 TUBE