Customadeonly 4 Pieces - Hub Centric Rings 73.1mm (Wheel) to 54.1mm (Hub) | Hubcentric Toyota Scion Inner diameter : 54.1mm Outer diameter: 73.1mm Material: Polycarbonate - durable material that is made to last! Quantity: 4 Pieces 73.1mm (Wheel bore) to 54.1mm (Factory hub bore) Hub ring adapters. Please be sure to confirm the bore size of your wheel & vehicle prior to purchase.