This used Kupo Duck Bill Clamp is ideal for holding lighting modifiers such as foamcore, reflector boards, flags, and bounce cards. The Vise-Grip-style quick-release clamp allows for gripping onto flat surfaces very quickly without damaging soft materials. As alluded to by its name, this clamp features a wide metal duckbill (aka platypus) jaw and clamps flat items up to a few inches thick. The steel baby stud welded to the clamp allows it to be firmly affixed to a baby receiver or a grip head.