Specification: 1. Thickness:1 inch or 25mm 2. Vehicle Bolt Pattern:4/156 or4x156mm or 4x6.14 inch 3. Wheel Bolt Pattern:4/156 or4x156mm or 4x6.14 inch 4. Stud Thread Size:3/8-24x1 or 3/8" 5. Center Bore:131mm or 5.157 inch 6Quantity:4 Pieces 7.Material:High Qualityt6 6061 Billet Aluminum 8. Lug Patterns :4 Lugs NOTED: Please make sure that these are the correct application for your vehicle. We do not guarantee any fitment onto any vehicle,we only guarantee that you will receive the item described as the above. Returns are only accepted if unused and not installed.(Returns ARE NOT ACCEPTED IF SPACERS-ADAPTERS HAVE BEEN INSTALLED TO YOUR VEHICLE) INSTALLATION TIPS 1.Please Make Sure You Take The Proper Measurements Before Purchasing. 2.Make Sure You Get 5-7 Turns Before Tightening. 3.The Back Of The Adapter Must Sit Flush On The Hub.Package include: 4 Pcs Wheel Spacers Adapters Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.