... 1.size:12"*3.50-5 2.bore:12-20mm 3.wheel material: nature rubber 4.max load:150kg ... provide samples of time; 4-7 day8.size of wheel:8"*2.50-4, 260*85, 3.00-4, 3 ... 2.2", 9"*3", 10"*2.5", 12"*2", 13"*3", 14"*4", 16"*4", 16"*4.00-8, 24"*13/8"ROUSANT pneumatic wheel ... ,4prbore12+20mmmax load150kgmax pressure1000bearing iron sheet/plastic steelrousant pneumatic wheel ypr015 12"*3.50-5 &pneumatic tyre& nature ...