Hangzhou Tangai Trading Co., Ltd is based in China and lists magnetic tile and marble run building block sets on Global Trade Plaza. The company offers sets ranging from 29 to 108 pieces, featuring magnetic tiles with star designs and marble run configurations. These products are made from plastic ABS with bigger magnets sized 22*4*5mm and include reinforced rivets and ultrasonic welding. Buyers can send an enquiry through Global Trade Plaza.