CAMTREE Carbon Fiber Professional Wide Angle Matte Box with Swing Away for 15mm Rod Support for Video DSLR Moving Making Camera Lenses up to 105mm + Hard Case (C-MB-23-CF) SWING AWAY feature for quick lens changes HEIGHT ADJUSTER to accommodate various lens sizes Designed and engineered for today's wide angle lens abd built in filter holder for advanced image capture. Durable LIGHTWEIGHT aluminum and ABS construction easy to use package that is Hi on features but low on cost 100% QUALITY Assurance Guarantee