Description: This listing is features one pair(2 pieces) of holder clip rings for the D1S/D3S HID xenon bulbs. You will need to use this HID bulb retainer holders to install the D1S/D3S HID bulbs for the cars listed above in the part compatibility list and many other makes and models. Features: Quantity: 1 pair (2 pieces) /2 pair (4 pieces) For D1S D1R D3S D3R HID xenon HID bulbs OEM part # 63117162087 / 63 11 7 162 087 To mount the HID bulb for the OEM headlamps for either replacement or retrofit headlight use. Package included: HID Xenon Bulbs Holder Clip Rings (qty as your choice) Note: If your car is not listed above, you can verify the fitment by removing your stock D1S or D3S HID bulb and compare the retainer with the pictures shown below.