Waterwood 2 pcs Ring HID Car Xenon Bulb Adapter Holder for D1S/D2S/D3S Black Material: Made of high quality plastic, strong and durable. Adapted for fixing modified xenon headlights. It can firmly fix the xenon lamp, more stable and safer. Suitable for D1S/D2S/D3S. Package Content : 2 x HID Bulb Holders.