SmallRig Silicone Donut with 114mm Rear Opening for Matte Box 3409 is specially designed for SmallRig Matte Box 2660 to overcome light leakage. It supports lenses of 58mm-114mm outside diameter without switching adapter rings so frequently. Specifically, the highly flexible silicone hood fits directly over the front of the lens and then snaps into matte box 2660 via a 114mm metal ring, while an additional LWS Rod Support for Matte Box 2663 is needed to support the matte box and prevent twisting. It features four outside points for easy adjustment and reinforced linings to prevent vignetting as a result of the collapse.