The XRAY X4 Graphite Body Post Holder set is a left and right side graphite body post holders that mount to the chassis using aluminum stand offs (XRA301370). The holder is held in place with countersunk screws. The holders accommodate for both vertical as well as horizontal body posts for a different feel on the track. Machined from 3.0mm premium-grade graphite material. Rear body mount system connected directly to the chassis using vertical or horizontal body post positions improves downforce and traction. Package includes two body post holders.