A solid installation with plenty of aiming power for speakers weighing up to 40 lbs. (7.2kg). Our unique Speaker Mount line also includes heavy-duty mounts for speakers weighing up to 40 lbs. (18.2kg). You get full PanaVise adjustability and reliability, plus added convenience - these mounts allow one person to handle the installation! Recommended for commercial installations such as auditoriums, theaters, restaurants and clubs