Best used as replacement Foot Brace Rails for Boreal and Riot kayaks. May fit other brands such as Necky (same as 01-1315-0967). Comes as a pair. 60cm long, about 23.75 inches long. May be labeled as K0098-60, 21071, or UMAT-014 BD Outside Sliders. Use for foot braces rails or for rudder foot control rails.