Hi guys, this is turn-up bladder produced by SNTAI. We produce bladders that cover tire sizes from 4" to 63". Whether the tire building process is a single stage or dual stage system SNTAI has experience with all types and styles of turn up bladders .We will work with each customer to custom manufacture the right Turn up Bladder for their tires. Our customers including MESNAC, TST, VMI, Pirelli, Goodyear, Continental,Bridgestone,Sumitomo,etc. For more infomation, please visit www.sntaigroup.com