Polar Focus® PY1 Quick Disconnect Fitting with Integral Beam Clamp allows accessories to be easily attached to our wide range of line array frames and rigging accessories. [break] This product is for use with our Integral Beam Clamps. Allows a cluster to be mounted directly to a level steel I-Beam with pan control. [break] Pro audio rigging design, roof attachment, supplemental structure, sales, support and PE stamped drawings in any US State provided by Polar Focus. Call us today for more information at (413) 586-4444.