Made from CNC billet forged aluminum for reliable strength and durability Copyrighted anti-rotation locking system allows setting the precise angle for increased comfort and will not move once set Allows customized positioning based on rider preference This 6-1/4ö (15.88 cm) x 4ö (10.16 cm) board is comfortable with non-slip rubber surface Replaces OEM driver mount Non-slip surface. FLOORBOARDS DRVR RYKER BK