The ProX X-DS29  is a Dual Speaker Bracket Pole Mount safely and conveniently mounts two speaker cabinets to one speaker stand. Constructed from steel, this bracket mounts to most standard speaker stand shafts. It features standard 1 3/8″ inserts and a black powder coat finish.   This bracket will allow mounting of two 10″ or 12″ speakers on a single stand.  Caution: Do not exceed safe loading weights and always protect the stand from tipping.