The GKTECH 15mm > 30mm spacers allow for adjustment of the fitment of your wheels. The set allows for 14 different widths to be made to ensure perfect wheel fitment. The 14 possible widths are 3,5,7,8,10,12,15,18,20,22,23,25,27,30mm. 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. The ultimate adjustable width set of spacers. 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 - Sold as a PAIR