Post Audio ARF-32 V.4 PRO 12X18 Inch Ambient Reflection Filter & Vocal Booth Studio sound anytime, anywhere Designed for stability, the ARF-32 V.4 Pro is not only Post Audio's largest filter. It is their lightest filter as well 18" wide X 12" high with 2" acoustic foam and stainless steel diffuser New V.4 features include heavier hardware, adjustable mic riser, double barrel mounting system Includes all the hardware to mount the ARF-32 and your mic on any standard issue mic stand