Spokes are made of polished 316L stainless steel and black TPU. Grip is made of polished 316L stainless steel and black TPU Polished stainless steel center cap Hub and center cap included Standard 3/4 “ taper “Vero Volante Italiano” is the registered trademark which distinguishes the Ultraflex steering wheels line conceived by Italian designers, engineered and manufactured in Italy, using the the best components and technologies according to Ultraflex Quality Management System. Meet with the EN28848, EN29775, ABYC P22 and UKCA standards