... rubber and Butyl rubber). Specific size as follows:1,The Agricultural tyre /tire with pattern R1 size:20.8-38 ... 16,16.00-25,17.5-25,20.5-2515,The part of TBR tyre/tire size :900R20 ,1000R20,1100R20 ... size : 900-17, 8-14.5 ,5.20-1217, The some specific pattern with Bamboo size :7.50-16,6 ... /75D-15 ,225/75D-15Dear friend, when you need the tire ,please contact us in any time , we hope we can start business ...