Compatible with all speedlights and flash triggers with an L-shaped bracket hot shoe, the RapidMount Cold Shoe Slider is a versatile choice. It attaches to the Extension Bar, as well as other hot shoes, video rigs, and flash brackets. This slider comes in handy whenever you need to slide your mounted equipment for a wide range of shooting options. The cold shoe slider features an all aluminum construction that makes it lightweight and durable. Also, the slider is coated with a non-reflective black finish.