Bose® SlideConnect™ WB-50 wall bracket (White) at Crutchfield
Bose WB-50 SlideConnect Wall Bracket - Black (716402-0010) for sale online | eBay
Amazon.com: Maozhren Adjustable Stand for Bose Speaker Stands wr Slideconnect Bracket, for Bose UB-20, UB-20 II, WB-50 II, UFS-20 II, UTS-20 II, CM520, CineMate II, GS II, for Bose Speaker Floor Stands,