This is the new wing stiffener set, designed to protect your wing while on the track, help to keep and retain its shape, less warping, and also increases corner speed!. comes with a standard riser and a high riser, the high riser is for high grip tracks or for maximum corner speed, while the low riser is for low grip tracks, or if you need more grip corner entry. Kit includes a solid wing mount to lock it all down! Made in the USA! Please select wing color, then wing mount color preference.