Amazon.com: Speaker Wall Mount for Bose UB-20 Series II Ceiling Mount Bracket Compatible with All Bose CineMate Lifestyle ST535 ST525 ST520 535III 525III Speakers Mounting Brackets (Not for Lifestyle 650), Pair :
Amazon.com: Tendodo Black UB-20 Series II Wall Mount Ceiling Bracket Stand Compatible with All Bose CineMate Lifestyle Wall/Ceiling Bracket, Wall Mounting Bracket for Bose Surround Speakers 809281-1100 : Electronics
Wall Mount Fit for Boses Lifestyle UB-20 Series II, TSV 1/2pcs Speaker Ceiling Mount Bracket, Speaker Stand Compatible with Lifestyle UB-20 Series 2 II, CineMate - Walmart.com
How to Install Wall Mount Bracket for BOSE UB 20 Seriese II - YouTube