ProX X-DS29, Dual Speaker Bracket Pole Mount for Speaker Stands – Black
The ProX X-DS29, Dual Speaker Bracket Pole Mount for Speaker Stands – Black. Constructed from steel, this bracket mounts to most standard speaker stands 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.
Product Specifications:
Material: Steel
Finish: Black powder coat
Insert Size: 1 3/8″
Weight Capacity: 60 lbs. total (30 lbs. per side)
Width from Insert-to-Insert Centers: 22″
Compatibility: Fits most standard speaker stand shafts