Product descriptions:

• Quantity: 1 pair (left & right)
• Made of billet aluminum
• Comes with 3 kinds of adapters and set screws.
• Adapter Sizes: 1/2 round fix ring, 3/8 square fix ring and 7/16 inch round with 16 splines fixed ring
• Please double-check if your car uses one of the above adapters.</li
• Installation instruction not included. It would require professional installation.
• Color: Purple