The SB-20 is an adjustable speaker wall/ceiling mount for satellite speakers up to 3.5kg/7.7lbs. It is an ideal mounting solution for speakers with dual threaded inserts spacing form 52.5mm to 67.5mm. When fully stretched, it puts speakers 142mm from the wall/ ceiling to give large space for easier installation and adjustment.. ±90° adjustment and 360° rotation at three joints are available for most flexibility to deliver ideal sound conditions.