Designed primarily for use with condenser microphones, The PD-133 is a professional acoustic filter that effectively diffuses acoustic plosives. It is comprised of a two-Layer nylon mesh fabric fitted within a composite molded ring. This piece may be used as a stand-alone piece and screwed directly on to the top of a mic stand or boom arm if desired. The rest of the PD-133 consists of flexible metal gooseneck and a stand holder that can attach to any size mic stand up to a diameter of one inch.