Two female dovetails on each side of the single clamp. One side is D Series, the other side is SYNTA Series. Allows mounting D Series male dovetails to SYNTA Series male dovetail. Split clamp design grips the dovetail bar along the entire surface of the saddle and will not dent or scratch the dovetail bar. The dovetail clamp has a large locking knob for tool free operation, spring loaded jaws, anodized aluminum and stainless steel construction. DPA- SYNTA-FF 2.5? Long, 4? Wide, 1? Thick, Wt. 12 oz.