Fit additional lens sizes when using the Matte Box 2660 with this Clamp-On Ring Kit from SmallRig. The kit includes 80, 85, 95, and 110mm filter clamp-on rings to adapt to the 114mm opening of the SmallRig Matte Box 2660. They are made from durable aluminum and provide a secure, split-ring, anti-twist design to keep the matte box, camera, filters, and lens safe from drops or scratches. A storage bag with a drawstring is included to store and transport the rings.