Lastolite TriGrip Diffuser, One Stop in great conditions. This TriGrip can block harsh sun, or studio light, or act as subtractor of unwanted reflected color casts. The TriGrip replaces the traditional round reflector with a unique triangular design with a built-in handle. The TriGrip's comfortable handle allows for easy manipulation of the reflecting panel with no stand or support needed. This is especially useful when you are working alone.