The GKTECH 20mm bolt on spacers allow for adjustment of the fitment of your wheels. The wheel spacers are hub centric to suit Nissans 66.1mm hub and are manufactured to the highest quality in T6061 Aluminium and then hard anodized to further increase the strength along with grade 10.9 extended studs. Features: - CNC machined aluminium T6-6061 construction - Grade 10.9 studs - Hub centric to suit 66.1mm Nissan hubs - 114.3mm PCD with M12 x 1.25 thread - 45mm long studs - Sold as a PAIR