The GKTECH 4 to 5 lug wheel adapters allow a 4 stud car to fit 5 stud wheels. Sold as a pair these wheel adapters bolt on to your standard hub just like a normal wheel spacer however 1 of your standard studs is then replaced with a longer stud which runs through the adapter and acts as the 5th stud. The wheel adapters 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. A super easy and cheap way to make your S13/180sx 5 stud. 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 - 20mm thick wheel adapters - Includes extra wheel studs required to install the adapters. - Sold as a PAIR