From Manufacturer
Enhance your subject's lighting environment with the Manfrotto 48" (1.2 m) TriGrip. This TriGrip adds a warm fill or a soft neutral fill.
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.
The TriGrip measures ~48" (1.2 m) at its widest point, and is also available in the following colors: Sunlite/Soft Silver, Silver/White, Sunfire/Silver, One Stop and Two Stop Diffusion.
The triangular shape combines the ability to collapse the reflector, and the ability to hold itself rigid.