Features: Made of material, high strength and strong structure. Long-life service and with high-performance. and practical, standardized design, can be used for a long-time. Easy to install, ready to use, convenient, fast and flexible. mechanism shield base for SHAFT551 Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Note: The Compatibility Is Just For Please Compare The Part Number With Your One Before Purchasing! Installation guide not included, we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Material: plastic colour: As shown Package Contents: 1 Pair x helmet shield base Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.